CN218956649U - Direct current bias current source clamp - Google Patents
Direct current bias current source clamp Download PDFInfo
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- CN218956649U CN218956649U CN202223389974.2U CN202223389974U CN218956649U CN 218956649 U CN218956649 U CN 218956649U CN 202223389974 U CN202223389974 U CN 202223389974U CN 218956649 U CN218956649 U CN 218956649U
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Abstract
The utility model discloses a direct current bias current source clamp which comprises an insulating shell, wherein a separation plate is arranged in the middle of the inner side of the insulating shell, a bearing plate is clamped on the separation plate, a first notch is arranged on the front surface of the insulating shell, a second notch is arranged on the back surface of the insulating shell, the direct current bias current source clamp further comprises two L-shaped clamping pieces, two reed pieces, two clamping opening adjusting devices, a high-frequency head end and a locker, and the two L-shaped clamping pieces are fixedly arranged on the bearing plate through screws. According to the utility model, the clamp is connected with the LCR digital bridge and the bias current source, the HC end and the LC end of the inductor pin are directly clamped between the two groups of adjusting reeds and the L-shaped clamping piece without being connected by a single wire, so that quick test can be performed, a new inductor is directly replaced after the test, the problems of troublesome operation and low efficiency of the traditional mode are solved, the requirement of high current flowing through the inductor is met during the test, the signal is stable, the external signal interference is prevented, and the test accuracy is high.
Description
Technical Field
The utility model relates to the field of bias current source clamps, in particular to a direct-current bias current source clamp.
Background
In analyzing the bias current characteristics of the inductor or core, both an LCR bridge and a dc bias current source are used. Particularly in analyzing the high current characteristics of an inductor (e.g., applying 150A high current to the inductor), it is necessary to connect the test terminals of the LCR to both ends of the inductor, and also to connect cables capable of flowing a high current to both ends of the inductor. The requirements for connection are tight connection, reliable fixation.
The conventional practice in the prior art is to clamp the two ends of the inductor by using an LCR bridge test clamp, lead out the current end of the bias current source by using a high-current cable, and then clamp the two ends of the inductor by using a clamp with high pressure. The method solves the basic requirement of high-current test, but has the following technical defects:
the clamp is pulled out with great effort to replace the product every time, the tested product is replaced, and then the new product is placed with great effort, so that the operation is troublesome and the efficiency is low.
Therefore, it is necessary to invent a dc bias current source clamp to solve the above problems.
Disclosure of Invention
The utility model aims to provide a direct-current bias current source clamp, which can be used for rapidly testing by connecting the clamp with an LCR digital bridge and a bias current source without connecting the clamp with a single wire, directly clamping an HC end and an LC end of an inductor pin between two groups of adjusting reeds and an L-shaped clamping piece, and directly replacing a new inductor after the test so as to solve the defects in the technology.
In order to achieve the above object, the present utility model provides the following technical solutions: the utility model provides a direct current bias current source anchor clamps, includes insulating housing, insulating housing inboard middle part is equipped with the division board, and the joint has the loading board on the division board, insulating housing openly is equipped with first notch, insulating housing back is equipped with the second notch, and direct current bias current source anchor clamps still include
The two L-shaped clamping pieces are fixedly arranged on the bearing plate through screws, are axisymmetrically distributed relative to the isolation plate, extend out of the insulating shell from the second notch, are integrally provided with special-shaped blocks at the bottom ends and are used for connecting a bias current source, and are respectively connected with the current positive end and the current negative end of the bias current source;
the two reeds are respectively positioned right above the two L-shaped clamping pieces and are used for clamping the pins of the inductor in a matched mode, and a clamping opening formed by the L-shaped clamping pieces and the reeds corresponds to the first notch;
the two clamping opening adjusting devices are correspondingly arranged at the tops of the two reeds and are used for driving the reeds to lift and adjusting the distance between the reeds and the L-shaped clamping piece;
the high-frequency head ends and the lockers are used for being connected with the LCR bridge, the number of the high-frequency head ends is multiple, the high-frequency head ends are distributed on the bottom wall of the insulating shell in a matrix mode, and the lockers are sleeved on the outer sides of the high-frequency head ends connected with the LCR bridge;
the two special-shaped blocks are respectively connected with the two reeds through insulated wires, and the two insulated wires respectively correspond to the HC end and the LC end of the inductor pin;
the high-frequency end connected with the LCR bridge is connected with a reed which is conducted with the inductance pin through a shielding wire.
As a preferred embodiment of the present utility model, the L-shaped clip and the profiled block are both made of metallic copper, and the reed is made of metallic copper.
As a preferable mode of the utility model, the insulated wire is made of thick copper wire and insulating rubber, and the shielding wire is arranged as a fine wire with shielding.
As a preferable scheme of the utility model, the clamping opening adjusting device comprises a knob and a rotating seat, the knob is in transmission connection with the rotating seat, the rotating seat is in rotary connection with the insulating shell, the bottom end of the rotating seat is fixedly connected with a screw rod, the outer side of the screw rod is in threaded sleeve joint with an adjusting seat, the side wall of the adjusting seat is in sliding connection with the isolation plate, the L-shaped clamping piece is fixed on the adjusting seat through a screw, and an elastic piece is arranged between the adjusting seat and the bearing plate.
As a preferable scheme of the utility model, the inner side of the insulating shell is provided with the limiting frame, and the top of the adjusting seat is connected with the inner side of the limiting frame in a sliding way.
As a preferable scheme of the utility model, the top of the rotating seat is provided with a flat-mouth shaft lever, the bottom of the knob is provided with a flat-mouth groove, and the flat-mouth shaft lever is matched with the flat-mouth groove.
As a preferable scheme of the utility model, the insulating shell comprises J-shaped frame plates, -shaped frame plates, a front plate and a rear plate, the J-shaped frame plates are buckled at the top of the -shaped frame plates, the front plate and the rear plate are respectively positioned at the front side and the rear side of the combined structure of the J-shaped frame plates and the -shaped frame plates, and the J-shaped frame plates, the -shaped frame plates, the front plate and the rear plate are fixedly connected through screws.
As a preferred embodiment of the present utility model, the J-shaped frame plate, -shaped frame plate, front plate and rear plate are all made of insulating plastic material.
In the technical scheme, the utility model has the technical effects and advantages that:
1. the fixture is connected with the LCR digital bridge and the bias current source, the HC end and the LC end of the pins of the inductor are directly clamped between the two groups of adjusting reeds and the L-shaped clamping piece without being connected by a single wire, a new inductor is directly replaced after the test, the problems of troublesome operation and low efficiency of the traditional mode are solved, the requirement that a large current flows through the inductor is met during the test, the signal is stable, the external signal interference is prevented, and the test accuracy is high;
2. through setting up the clamp mouth adjusting device, to the inductor pin that the diameter size is different, it is fixed to adjust the inductor pin that the clamp mouth size is applicable to different diameters, utilizes the clamp mouth that L shape clamping piece and reed are constituteed to press from both sides the tight inductor pin that is tested, application scope improves greatly, and the operation is quick convenient, and has fixed reliable advantage, has realized the effect of conveniently changing the inductance, improves efficiency of software testing greatly.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.
FIG. 1 is a perspective view of a first view of the overall structure of the present utility model;
FIG. 2 is a second perspective view of the overall structure of the present utility model;
FIG. 3 is a third perspective view of the overall structure of the present utility model;
FIG. 4 is an exploded view of the overall structure of the present utility model;
FIG. 5 is a schematic view of the internal structure of the present utility model;
FIG. 6 is a perspective view of a first view of the jaw adjustment apparatus (partially constructed) of the present utility model;
fig. 7 is a second perspective view of the jaw adjustment apparatus (part of the structure) of the present utility model.
Reference numerals illustrate:
an insulating housing-1; a separator plate-2; a first notch-3; a second notch-4; l-shaped clamping pieces-5; a special-shaped block-6; reed-7; a clamping opening adjusting device-8; a high-frequency head end-9; a locker-10; insulated conductors-11; a carrier plate-12;
a knob-81; a swivel base-82; a screw rod-83; an adjustment seat-84; an elastic member-85; a limit frame-86; flat-mouth shaft lever-87; plain end recess-88;
j-shaped frame plate-101; form frame plate-102; front plate-103; rear plate-104.
Detailed Description
In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.
The utility model provides a direct current bias current source clamp as shown in figures 1-7, which comprises an insulating shell 1, wherein a partition plate 2 is arranged in the middle of the inner side of the insulating shell 1, a bearing plate 12 is clamped on the partition plate 2, a first notch 3 is arranged on the front surface of the insulating shell 1, a second notch 4 is arranged on the back surface of the insulating shell 1, and the direct current bias current source clamp further comprises
The two L-shaped clamping pieces 5 are fixedly arranged on the bearing plate 12 through screws, the two L-shaped clamping pieces 5 are axisymmetrically distributed relative to the isolation plate 2, the L-shaped clamping pieces 5 extend out of the insulating shell 1 from the second notch 4, the bottom ends of the L-shaped clamping pieces 5 are integrally provided with special-shaped blocks 6, the special-shaped blocks 6 are used for connecting a bias current source, and the two special-shaped blocks 6 are respectively connected with the current positive end and the current negative end of the bias current source;
the two reeds 7 are respectively positioned right above the two L-shaped clamping pieces 5 and are used for being matched with the L-shaped clamping pieces 5 to clamp the pins of the inductor, and a clamping opening formed by the L-shaped clamping pieces 5 and the reeds 7 corresponds to the first notch 3;
the two clamping opening adjusting devices 8 are correspondingly arranged at the tops of the two spring leaves 7 and are used for driving the spring leaves 7 to lift and adjusting the distance between the spring leaves 7 and the L-shaped clamping pieces 5;
the high-frequency head ends 9 and the lockers 10 are used for connecting the LCR bridge, the number of the high-frequency head ends 9 is multiple, the high-frequency head ends 9 are distributed on the bottom wall of the insulating shell 1 in a matrix mode, and the lockers 10 are sleeved on the outer sides of the high-frequency head ends 9 connected with the LCR bridge;
the two special-shaped blocks 6 are respectively connected with the two reeds 7 through insulated wires 11, and the two insulated wires 11 respectively correspond to the HC end and the LC end of the inductor pin;
the high-frequency head end 9 connected with the LCR bridge is connected with the reed 7 conducted with the inductance pin through a shielding wire;
the cooperation and the circuit conduction mode of the device enable the clamp to be directly connected with the LCR digital bridge and the bias current source well, and the single wire connection is not needed, so that the requirements of high current flowing through the inductor are met, the requirements of signal stability and external signal interference prevention are met, and the testing accuracy is high.
Furthermore, in the above technical scheme, the L-shaped clamping piece 5 and the special-shaped block 6 are both made of metal copper, and the reed 7 is made of metal copper, so that excellent conductivity of the body is ensured.
Further, in the above technical solution, the insulated wire 11 is made of a thick copper wire and an insulating rubber, the shielding wire is a thin wire with shielding, and the insulated wire 11 and the shielding wire are made of commercially available products.
Further, in the above technical scheme, the clamping opening adjusting device 8 comprises a knob 81 and a rotating seat 82, the knob 81 is in transmission connection with the rotating seat 82, the rotating seat 82 is in rotation connection with the insulating housing 1, the bottom end of the rotating seat 82 is fixedly connected with a screw rod 83, an adjusting seat 84 is sleeved on the outer side of the screw rod 83 in a threaded manner, the side wall of the adjusting seat 84 is in sliding connection with the isolation plate 2, the L-shaped clamping piece 5 is fixed on the adjusting seat 84 through a screw, an elastic piece 85 is arranged between the adjusting seat 84 and the bearing plate 12, a buffering force is provided, the service life of the device is prolonged, damage to inductor pins is reduced, and the clamping opening is applicable to the fixation of inductor pins with different diameters through the clamping opening adjusting device 8 aiming at the inductor pins with different diameters;
specifically, the rotary knob 81 drives the rotary seat 82 and drives the screw rod 83 to rotate, the adjusting seat 84 is limited in a sliding manner, and the adjusting seat 84 is enabled to linearly move up and down under the cooperation of torsional force of the screw rod 83, so that the clamping opening formed by the L-shaped clamping piece 5 and the reed 7 clamps the tested inductor pin, the application range is greatly improved, the operation is fast and convenient, the effect of conveniently replacing the inductor is realized, and the testing efficiency is greatly improved.
Further, in the above technical solution, the inner side of the insulating housing 1 is provided with the limit frame 86, and the top of the adjusting seat 84 is slidably connected to the inner side of the limit frame 86, so as to improve the stability of the adjusting seat 84 during movement.
Further, in the above technical scheme, the top of the rotating seat 82 is provided with a flat-mouth shaft lever 87, and the bottom of the knob 81 is provided with a flat-mouth groove 88, the flat-mouth shaft lever 87 is matched with the flat-mouth groove 88, the flat-mouth shaft lever 87 is made by forming a notch on one side of a circular shaft, and the rotating seat 82 is sleeved outside the top end of the flat-mouth shaft lever 87 through the flat-mouth groove 88.
Further, in the above technical solution, the insulating housing 1 includes a J-shaped frame 101, a -shaped frame 102, a front plate 103 and a rear plate 104, where the J-shaped frame 101 is fastened to the top of the -shaped frame 102, the front plate 103 and the rear plate 104 are respectively located at the front and rear sides of the combined structure of the J-shaped frame 101 and the -shaped frame 102, the J-shaped frame 101, the -shaped frame 102, the front plate 103 and the rear plate 104 are fixedly connected by screws, the first notch 3 is opened on the front plate 103, and the second notch 4 is located between the top ends of the J-shaped frame 101 and the rear plate 104.
Further, in the above technical solution, the J-shaped frame plates 101, , the front plate 103 and the rear plate 104 are all made of insulating plastic material, and the joints of the J-shaped frame plates 101, , the front plate 103 and the rear plate 104 can be sealed by rubber seals.
When the direct-current bias current source clamp provided by the utility model is used, the working process is as follows:
when the bias current characteristics of the inductor or the iron core are analyzed and tested, the clamp is directly connected with the LCR digital bridge and the bias current source, the single wire connection is not needed, the HC end and the LC end of the pins of the inductor are directly clamped between the two groups of adjusting reeds 7 and the L-shaped clamping piece 5, and a new inductor is directly replaced after the test;
in addition, to the inductor pin that the diameter size is different, make the inductor pin that presss from both sides the mouth size and be applicable to different diameters through pressing from both sides mouthful adjusting device 8 fixed, rotatory knob 81 makes its transmission roating seat 82 and drives lead screw 83 and rotate, adjust seat 84 by the slip spacing, make adjust seat 84 rectilinear lifting motion under the torsional force cooperation of lead screw 83, thereby the tight inductor pin that is tested of clamp mouth clamp that makes L shape clamping piece 5 and reed 7 constitute, application scope improves greatly, and the operation is quick convenient, realize the effect of conveniently changing the inductance promptly, improve efficiency of software testing greatly.
While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.
Claims (8)
1. The utility model provides a direct current bias current source anchor clamps, includes insulating housing (1), its characterized in that: the insulation shell (1) is equipped with division board (2) in inboard middle part, and the joint has loading board (12) on division board (2), insulation shell (1) openly is equipped with first notch (3), insulation shell (1) back is equipped with second notch (4), and direct current bias current source anchor clamps still include
The two L-shaped clamping pieces (5) are fixedly arranged on the bearing plate (12) through screws, the two L-shaped clamping pieces (5) are axisymmetrically distributed relative to the isolation plate (2), the L-shaped clamping pieces (5) extend out of the insulating shell (1) from the second notch (4), the bottom ends of the L-shaped clamping pieces (5) are integrally provided with special-shaped blocks (6), the special-shaped blocks (6) are used for connecting a bias current source, and the two special-shaped blocks (6) are respectively connected with the current positive end and the current negative end of the bias current source;
the two reeds (7) are respectively positioned right above the two L-shaped clamping pieces (5) and are used for being matched with the L-shaped clamping pieces (5) to clamp the pins of the inductor, and a clamping opening formed by the L-shaped clamping pieces (5) and the reeds (7) corresponds to the first notch (3);
the two clamping opening adjusting devices (8) are correspondingly arranged at the tops of the two reeds (7) and are used for driving the reeds (7) to lift and adjusting the distance between the reeds (7) and the L-shaped clamping piece (5);
the high-frequency head ends (9) and the lockers (10) are used for being connected with the LCR bridge, the number of the high-frequency head ends (9) is multiple, the high-frequency head ends (9) are distributed on the bottom wall of the insulating shell (1) in a matrix mode, and the lockers (10) are sleeved on the outer sides of the high-frequency head ends (9) connected with the LCR bridge;
the two special-shaped blocks (6) are respectively connected with the two reeds (7) through insulated wires (11), and the two insulated wires (11) respectively correspond to the HC end and the LC end of the inductor pin;
the high-frequency end (9) connected with the LCR bridge is connected with a reed (7) conducted with the inductance pin through a shielding wire.
2. The dc bias current source clamp of claim 1, wherein: the L-shaped clamping piece (5) and the special-shaped block (6) are both made of metal copper, and the reed (7) is made of metal copper.
3. The dc bias current source clamp of claim 1, wherein: the insulated wire (11) is made of a thick copper wire and an insulating rubber, and the shielding wire is a fine wire with shielding.
4. The dc bias current source clamp of claim 1, wherein: the clamp mouth adjusting device (8) comprises a knob (81) and a rotating seat (82), the knob (81) is in transmission connection with the rotating seat (82), the rotating seat (82) is in rotary connection with an insulating shell (1), a screw rod (83) is fixedly connected with the bottom end of the rotating seat (82), an adjusting seat (84) is sleeved on the outer side of the screw rod (83) in a threaded manner, the side wall of the adjusting seat (84) is in sliding connection with a partition plate (2), the L-shaped clamping piece (5) is fixed on the adjusting seat (84) through screws, and an elastic piece (85) is arranged between the adjusting seat (84) and the bearing plate (12).
5. The dc bias current source clip of claim 4, wherein: the limiting frame (86) is arranged on the inner side of the insulating shell (1), and the top of the adjusting seat (84) is connected to the inner side of the limiting frame (86) in a sliding mode.
6. The dc bias current source clip of claim 4, wherein: the top of the rotating seat (82) is provided with a flat shaft lever (87), the bottom of the knob (81) is provided with a flat groove (88), and the flat shaft lever (87) is matched with the flat groove (88).
7. The dc bias current source clamp of claim 1, wherein: the insulating shell (1) comprises J-shaped frame plates (101), -shaped frame plates (102), a front plate (103) and a rear plate (104), the J-shaped frame plates (101) are buckled at the top of the -shaped frame plates (102), the front plate (103) and the rear plate (104) are respectively located at the front side and the rear side of the combined structure of the J-shaped frame plates (101) and the -shaped frame plates (102), and the J-shaped frame plates (101) and -shaped frame plates (102), the front plate (103) and the rear plate (104) are fixedly connected through screws.
8. The dc bias current source clip of claim 7, wherein: the J-shaped frame plate (101), the -shaped frame plate (102), the front plate (103) and the rear plate (104) are all made of insulating plastic materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223389974.2U CN218956649U (en) | 2022-12-17 | 2022-12-17 | Direct current bias current source clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223389974.2U CN218956649U (en) | 2022-12-17 | 2022-12-17 | Direct current bias current source clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218956649U true CN218956649U (en) | 2023-05-02 |
Family
ID=86137854
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223389974.2U Active CN218956649U (en) | 2022-12-17 | 2022-12-17 | Direct current bias current source clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218956649U (en) |
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2022
- 2022-12-17 CN CN202223389974.2U patent/CN218956649U/en active Active
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