CN215375564U - Hall sensor current accuracy testing arrangement - Google Patents

Abstract

The utility model discloses a Hall sensor current precision testing device, which comprises a box body, a power supply and a detection joint, and is characterized by also comprising a clamping plate, a first conductive piece, a second conductive piece, a first static conductive block, a second static conductive block, a first rotating conductive piece, a second rotating conductive piece and a lead, wherein: the first conductive piece and the second conductive piece are fixed on the clamping plate, and the wiring end of the Hall sensor is respectively connected with the first conductive piece and the second conductive piece; the clamping plate is detachably arranged in the box body; the first static conductive block and the second static conductive block are fixed on the box body, the first rotating conductive piece and the second rotating conductive piece are rotatably installed in the box body, the first rotating conductive piece and the second rotating conductive piece are respectively and electrically connected with the first static conductive block and the second static conductive block through wires, and the power supply and the detection joint are both connected with the first static conductive block and the second static conductive block. The utility model simplifies the installation process of the Hall sensor and improves the detection efficiency.

Description

Hall sensor current accuracy testing arrangement

Technical Field

The utility model relates to the technical field of current precision detection equipment, in particular to a Hall sensor current precision testing device.

Background

The current is one of main collected data of the power battery system, is related to the estimation precision of the SOC and the reliability of charge and discharge management, and is related to the safety performance of the power battery system. At present, the current acquisition function of a main current power battery system is mainly realized through a BMS and a Hall current sensor, and the current acquisition precision of a battery management system has important significance for the power battery system. The current collection accuracy test of the battery management system using the hall sensor is one of the necessary functional tests.

Patent publication No. CN203705518U discloses a hall sensor is correlated with and is surveyed current frock, which comprises a power supply, resistance, connecting wire and two at least hall sensor, the positive output of power is all connected to affiliated hall sensor's power positive terminal, the negative-going output of power is all connected to power negative terminal, the feedback output all is connected with two connecting wire one end respectively through resistance R, and the synthetic public head of two connecting wire other ends, through two at least hall sensor parallel connection, thereby can insert many cables line simultaneously in parallelly connected hall sensor, be applicable to and measure single-phase heavy current.

According to the technical scheme, the plurality of Hall sensors are connected in parallel, so that the test tool can measure single-phase heavy current. The current precision test of the battery management system needs to utilize a Hall sensor, the Hall sensor is placed in an environment bin, and the current value acquired by the BMS is compared with the actual current value. The reliable fixing of the hall sensor is related to the safety of the test and the convenience of installation. In traditional mounting means, install hall sensor inside tool equipment through the screw, the operation is comparatively loaded down with trivial details, and needs the screw to screw up with the wiring of circuit equally, and the installation all needs to spend a large amount of time with the dismantlement, has the inconvenient problem of installation and maintenance. .

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problems in the background art, the utility model provides a Hall sensor current precision testing device, which changes the installation mode of a Hall sensor in a tool, so that the Hall sensor is fixed in the tool device and simultaneously completes wiring, the installation of the Hall sensor is simplified, and the service efficiency of the current precision measuring tool is improved.

The utility model provides a Hall sensor current precision testing device, which comprises a box body, a power supply and a detection joint, and is characterized by further comprising a clamping plate, a first conductive piece, a second conductive piece, a first static conductive block, a second static conductive block, a first rotating conductive piece, a second rotating conductive piece and a lead, wherein:

the first conductive piece and the second conductive piece are fixed on the clamping plate, the detected Hall sensor can be fixed on the clamping plate in a clamping manner, and the wiring terminals of the Hall sensor are respectively connected with the first conductive piece and the second conductive piece;

the clamping plate and the Hall sensor fixed on the clamping plate are arranged in the box body, and the clamping plate is detachably arranged in the box body in a clamping mode;

the first static conductive piece and the second static conductive piece are fixed on the box body, the first rotating conductive piece and the second rotating conductive piece are rotatably installed in the box body and are respectively and electrically connected with the first static conductive piece and the second static conductive piece through wires, the first rotating conductive piece is rotated to realize the electrical connection or separation of the first rotating conductive piece and the first conductive piece, and the second rotating conductive piece is rotated to realize the electrical connection or separation of the second rotating conductive piece and the second conductive piece;

the power supply and the detection joint are connected with the first static conductive block and the second static conductive block.

The utility model further comprises a first sliding conductive piece and a second sliding conductive piece, wherein the first sliding conductive piece and the second sliding conductive piece are horizontally and slidably arranged on the box body, the power supply and the detection joint are connected with the first sliding conductive piece and the second sliding conductive piece, the first sliding conductive piece is horizontally slid to realize the electric connection or separation of the first sliding conductive piece and the first static conductive block, and the second sliding conductive piece is horizontally slid to realize the electric connection or separation of the second horizontal sliding conductive piece and the second static conductive block.

As a further optimized scheme of the utility model, the first sliding conductive piece and the second sliding conductive piece are both wiring screws, and the wiring screws are installed on the box body in a threaded manner.

As a further optimized scheme of the utility model, the positioning device further comprises a positioning substrate, wherein the positioning substrate is arranged in the box body, the first static conductive block, the second static conductive block and the clamping plate are all arranged on the positioning substrate (14), the first static conductive block and the second static conductive block are positioned on two sides of the clamping plate, and the first rotating conductive piece and the second rotating conductive piece are both rotatably arranged on the positioning substrate.

As a further optimized scheme of the present invention, the first conductive member and the second conductive member each include an upper conductive block and a lower conductive block, and the upper conductive block and the lower conductive block are respectively mounted on the upper surface and the lower surface of the clamping plate;

first rotate electrically conductive piece and second and rotate electrically conductive piece and all include the arc conducting rod, go up and rotate conducting block and rotate the conducting block down, go up and rotate the conducting block down and install respectively at the both ends of arc conducting rod, the arc conducting rod rotates and installs on the location base plate, rotates the arc conducting rod and makes and go up and rotate conducting block and last conducting block contact or separation, and rotates conducting block and lower conducting block contact or separation under this in-process.

As a further optimized scheme of the utility model, a first positioning groove and a second positioning groove are formed on the positioning substrate, and the lower conductive block of the first conductive piece and the lower conductive block of the second conductive piece are respectively positioned in the first positioning groove and the second positioning groove.

As a further preferable aspect of the present invention, the arc-shaped conductive rod of the first rotating conductive member and the arc-shaped conductive rod of the second rotating conductive member are rotatably installed in the first positioning groove and the second positioning groove, respectively.

As a further optimized scheme of the utility model, the lower surface of the lower conductive block is in surface contact with the upper surface of the lower rotating conductive block, and the outer side surface of the upper conductive block is in point contact with the outer side surface of the upper rotating conductive block.

As a further optimized scheme of the utility model, the end face of the lower rotating conductive block, which is opposite to the lower conductive block, is provided with a guide block, and the upper surface of the guide block is an inclined plane which gradually inclines upwards from one end close to the lower conductive block to one end far away from the lower conductive block.

As a further optimized scheme of the utility model, elastic clamping pieces are transversely arranged in the first positioning groove and the second positioning groove respectively, and the lower conductive block is provided with a positioning clamping groove which is matched with the elastic clamping pieces.

As a further optimized scheme of the utility model, the elastic clamping piece is arranged on the positioning substrate through a clamping piece 210, and the clamping piece 210 can be elastically deformed along the horizontal direction.

According to the Hall sensor current precision testing device, the Hall sensor is fixed in the box body through the clamping plate, the power supply, the detection joint, the first static conductive block, the second static conductive block, the first conductive piece, the second conductive piece, the first rotating conductive piece, the second rotating conductive piece and the wire are communicated through rotation of the first rotating conductive piece and the second rotating conductive piece, the installation process of the Hall sensor is simplified, and the detection efficiency is improved.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of a portion of the area A according to the present invention.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar designations refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

It will be understood that the terms "central," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for convenience and simplicity of description only and are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

A hall sensor current accuracy testing device as shown in fig. 1-2, comprising a box body 1, a power supply 2, a detection joint 3, a clamping plate 4, a positioning substrate 14, a first conductive piece 5, a second conductive piece 6, a first static conductive piece 7, a second static conductive piece 8, a first rotating conductive piece 9, a second rotating conductive piece 10, a wire 11, a first sliding conductive piece 12 and a second sliding conductive piece 13, wherein:

the first conductive piece 5 and the second conductive piece 6 are fixed on the clamping plate 4 through other fixing pieces such as welding or screws, the detected Hall sensor 12 is fixed on the clamping plate 4, the middle part of the clamping plate 4 is provided with a clamping groove, the Hall sensor 12 is clamped in the clamping groove, the Hall sensor 12 is positioned between the first conductive piece 5 and the second conductive piece 6, and the wiring end of the Hall sensor 12 is respectively connected with the first conductive piece 5 and the second conductive piece 6 through a conductive wire;

the first conductive piece 5 and the second conductive piece 6 both comprise an upper conductive piece 15 and a lower conductive piece 16, the upper conductive piece 15 and the lower conductive piece 16 are respectively fixed on the upper surface and the lower surface of the clamping plate 4, and the wiring ends of the hall sensor 12 are respectively electrically connected with the upper conductive piece 15 and the lower conductive piece 16 of the first conductive piece 5 and the second conductive piece 6;

the positioning base plate 14 is fixed in the box body 1, and a rotating space is formed between the positioning base plate 14 and the bottom surface of the box body 1;

in order to fix the positioning substrate 14, in this embodiment, it is preferable that the positioning substrate 14 is provided with a first positioning groove 140 and a second positioning groove 141, the lower conductive block 16 of the first conductive member 5 and the lower conductive block 16 of the second conductive member 6 are respectively located in the first positioning groove 140 and the second positioning groove 141, the lower conductive block 16 of the first positioning member and the lower conductive block 16 of the second conductive member 6 are opposite to each other and abut against the vertical surfaces of the first positioning groove 140 and the second positioning groove 141, so as to clamp the clamping plate 4;

in this embodiment, preferably, an elastic clamping member 21 is further transversely installed in the first positioning groove 140 and the second positioning groove 141, the lower conductive block 16 is provided with a positioning slot 160, when the lower conductive block 16 is located in the first positioning groove 140 or the second positioning groove 141, the end of the elastic clamping member 21 is clamped with the positioning slot 160, so as to ensure the stability of the connection between the elastic clamping member and the positioning substrate 14, the elastic clamping member 21 includes clamping ends 211 and 210, 210 is fixed between the positioning substrate 14 and the clamping end 211, the clamping end 211 is connected with the positioning slot 160, 210 can elastically deform along the horizontal direction, 210 can be a spring or an elastic pad, in this embodiment, 210 is a spring, when the lower conductive block 16 moves downward in the first positioning groove 140 or the second positioning groove 141, the spring is pressed to make the clamping end 211 of the elastic clamping move away from the lower conductive block 16, when the positioning slot 160 is opposite to the elastic clamping member 21, the spring drives the clamping end 211 to move into the clamping groove under the action of self-restoring force, so that the lower conductive block 16 is fixed, and vice versa in the process of moving the lower conductive block 16 upwards to disassemble the clamping plate 4, which is not described again;

the first rotating conductive piece 9 and the second rotating conductive piece 10 both comprise an arc conductive rod 17, an upper rotating conductive block 18 and a lower rotating conductive block 19, the upper rotating conductive block 18 and the lower rotating conductive block 19 are respectively installed at two ends of the arc conductive rod 17, the arc conductive rod 17 is rotatably installed on the positioning substrate 14 through a rotating shaft 23, the rotating shaft 23 rotates the arc conductive rod 17 to further rotate so as to enable the upper rotating conductive block 18 to be in contact with or separated from the upper conductive block 15, and in the process, the lower rotating conductive block 19 is in contact with or separated from the lower conductive block 16;

specifically, the upper rotating conductive block 18 is an outward convex arc surface opposite to the upper conductive block 15, the surface of the upper conductive block 15 opposite to the upper rotating conductive block 18 is an outward convex arc surface, so that the upper rotating conductive block 18 is in point contact with the upper conductive block 15, the lower conductive block 16 is in surface contact with the lower rotating conductive block 19, specifically, the lower surface of the lower conductive block 16 is in contact with the upper surface of the lower rotating conductive block 19, and the lower conductive block 16 is in contact with the lower rotating conductive block 19 while the upper conductive block 15 is in contact with the upper rotating conductive block 18;

in order to further ensure the guiding function of the arc-shaped conducting rod 17 during the rotation process, in this embodiment, it is preferable that the end surface of the lower rotating conducting block 19 opposite to the lower conducting block 16 is provided with a guiding block 20, the upper surface of the guiding block 20 is an inclined surface which is gradually inclined upwards from one end close to the lower conducting block 16 to one end far away from the lower conducting block 16, and further, the inclined surface of the conducting block contacts with the lower conducting block 16 during the rotation process for guiding;

the first static conductive block 7 and the second static conductive block 8 are fixed on the positioning substrate 14 through other fixing parts such as welding or screws, and the first static conductive block 7 and the second static conductive block 8 are connected with the arc-shaped conductive rod 17 through the conducting wire 11;

the first sliding conductive piece 12 and the second sliding conductive piece 13 are both wiring screws, the first sliding conductive piece 12 and the second sliding conductive piece 13 penetrate through the box body 1 in a threaded mode, the first sliding conductive piece 12 is rotated to enable the first sliding conductive piece 12 to be in contact with or separated from the first static conductive block 7, the second sliding conductive piece 13 is rotated to enable the second sliding conductive piece 13 to be in contact with or separated from the second static conductive block 8, and the power supply 2 and the detection joint 3 are both connected with the first sliding conductive piece 12 and the second sliding conductive piece 13.

In the working process of the embodiment: firstly, a Hall sensor 12 with proper specification is selected, the Hall sensor 12 is installed on a clamping plate 4, the clamping plate 4 is fixed on a first positioning groove 140 and a second positioning groove 141 of a positioning substrate 14, a lower conducting block 16 at the lower end of the clamping plate 4 on the positioning substrate 14 is arranged on a first positioning groove 140 and a second positioning groove 141 of the positioning substrate 14, a guide block 20 at the lower end of an arc conducting rod 17 is pushed to move, the arc conducting rod 17 rotates in the first positioning groove 140 and the second positioning groove 141 by taking a central rotating shaft 23 as a shaft, when the lower conducting block 16 moves to the lowest side, an upper rotating conducting block 18 on the arc conducting rod 17 is abutted against an upper conducting block 15, meanwhile, an elastic clamping piece 21 in the first positioning groove 140 and the second positioning groove 141 is clamped in a positioning clamping groove 160 on the lower conducting block 16, the fixing of the clamping plate 4 on the positioning substrate 14 is completed, and simultaneously, the upper conducting block 15 is electrically connected with a first feeding conducting block or a second static conducting block 8, a first rotating block 9 or a second rotating block 10, the hall sensor 12 is mounted in the detection box 1, so that the detection joint 3 connected in parallel with the detection box 1 can be applied to the current precision test, the first sliding conductive piece 12 is rotated to enable the first sliding conductive piece 12 to be contacted with or separated from the first static conductive block 7, the second sliding conductive piece 13 is rotated to enable the second sliding conductive piece 13 to be contacted with or separated from the second static conductive block 8, and the detection of the hall sensor 12 is completed.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims (10)

1. The utility model provides a hall sensor current accuracy testing arrangement, includes box (1), power (2) and detection joint (3), its characterized in that still includes joint board (4), first electrically conductive piece (5), second electrically conductive piece (6), first static conducting block (7), second static conducting block (8), first rotation electrically conductive piece (9), second rotation electrically conductive piece (10) and wire (11), wherein:

a first conductive piece (5) and a second conductive piece (6) are fixed on the clamping connection plate (4), a detected Hall sensor (12) is fixed on the clamping connection plate (4), and a wiring terminal of the Hall sensor (12) is respectively connected with the first conductive piece (5) and the second conductive piece (6);

the clamping plate (4) and a Hall sensor (12) fixed on the clamping plate (4) are arranged in the box body (1);

a first static conductive block (7) and a second static conductive block (8) are fixed on the box body (1), a first rotating conductive piece (9) and a second rotating conductive piece (10) are rotatably installed in the box body (1), the first rotating conductive piece (9) and the second rotating conductive piece (10) are respectively and electrically connected with the first static conductive block (7) and the second static conductive block (8) through a wire (11), the first rotating conductive piece (9) is rotated to realize the electrical connection or separation of the first rotating conductive piece (9) and the first conductive piece (5), and the second rotating conductive piece (10) is rotated to realize the electrical connection or separation of the second rotating conductive piece (10) and the second conductive piece (6);

the power supply (2) and the detection joint (3) are connected with the first static conductive block (7) and the second static conductive block (8).

2. The Hall sensor current accuracy testing device according to claim 1, further comprising a first sliding conductive member (12) and a second sliding conductive member (13), wherein the first sliding conductive member (12) and the second sliding conductive member (13) are horizontally and slidably mounted on the case (1), the power supply (2) and the detection connector (3) are both connected to the first sliding conductive member (12) and the second sliding conductive member (13), the horizontal sliding of the first sliding conductive member (12) enables the first sliding conductive member (12) to be electrically connected or separated from the first static conductive block (7), and the horizontal sliding of the second sliding conductive member (13) enables the second horizontal sliding conductive member to be electrically connected or separated from the second static conductive block (8).

3. The hall sensor current accuracy testing device of claim 2, wherein the first sliding conductive member (12) and the second sliding conductive member (13) are wiring screws, and the wiring screws are installed on the case (1) in a threaded manner.

4. The Hall sensor current accuracy testing device according to claim 1, further comprising a positioning substrate (14), wherein the positioning substrate (14) is installed in the case (1), the first static conductive block (7), the second static conductive block (8) and the clamping plate (4) are all installed on the positioning substrate (14), the first static conductive block (7) and the second static conductive block (8) are located on two sides of the clamping plate (4), and the first rotating conductive piece (9) and the second rotating conductive piece (10) are both rotatably installed on the positioning substrate (14).

5. The Hall sensor current accuracy testing device according to claim 4, wherein the first conductive member (5) and the second conductive member (6) each comprise an upper conductive block (15) and a lower conductive block (16), the upper conductive block (15) and the lower conductive block (16) being respectively mounted on the upper and lower surfaces of the clamping plate (4);

the first rotating conductive piece (9) and the second rotating conductive piece (10) comprise arc-shaped conductive rods (17), upper rotating conductive blocks (18) and lower rotating conductive blocks (19), the upper rotating conductive blocks (18) and the lower rotating conductive blocks (19) are respectively installed at two ends of the arc-shaped conductive rods (17), the arc-shaped conductive rods (17) are rotatably installed on the positioning base plate (14), the upper rotating conductive blocks (18) are contacted with or separated from the upper conductive blocks (15) by rotating the arc-shaped conductive rods (17), and the lower rotating conductive blocks (19) are contacted with or separated from the lower conductive blocks (16) in the process.

6. The Hall sensor current accuracy testing device according to claim 5, wherein the positioning substrate (14) is formed with a first positioning groove (140) and a second positioning groove (141), and the lower conductive piece (16) of the first conductive member (5) and the lower conductive piece (16) of the second conductive member (6) are respectively located in the first positioning groove (140) and the second positioning groove (141).

7. The Hall sensor current accuracy testing device according to claim 6, wherein the arc-shaped conducting rod (17) of the first rotating conductive member (9) and the arc-shaped conducting rod (17) of the second rotating conductive member (10) are rotatably installed in the first positioning groove (140) and the second positioning groove (141), respectively.

8. The Hall sensor current accuracy testing device according to claim 6, wherein the lower surface of the lower conductive block (16) is in surface contact with the upper surface of the lower rotating conductive block (19), and the outer side surface of the upper conductive block (15) is in point contact with the outer side surface of the upper rotating conductive block (18).

9. The Hall sensor current accuracy testing device according to claim 8, wherein the end surface of the lower rotating conductive block (19) opposite to the lower conductive block (16) is provided with a guide block (20), and the upper surface of the guide block (20) is a slope gradually inclining upwards from the end close to the lower conductive block (16) to the end far away from the lower conductive block (16).

10. The Hall sensor current accuracy testing device according to claim 6, wherein the first positioning groove (140) and the second positioning groove (141) are respectively and transversely provided with an elastic clamping member (21), the lower conductive block (16) is provided with a positioning clamping groove (160), and the positioning clamping groove (160) is matched with the elastic clamping member (21).

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