Hall element testing device

Abstract

The utility model relates to the technical field of Hall element testing, in particular to a Hall element testing device which comprises a supporting mechanism, a mounting base body is movably mounted on one side of the supporting mechanism, and a magnetic field generating mechanism is clamped and fixed to the upper portion of the mounting base body. The vertical fixing part and the horizontal pressing part are integrally formed, an electromagnet is slidably connected to the interior of the horizontal pressing part, a fine adjustment assembly is arranged outside the horizontal pressing part, the end of the fine adjustment assembly abuts against one side of the electromagnet, and an auxiliary fixing assembly is arranged at the lower end of the electromagnet. The Hall element is pressed and fixed through the gravity of the magnetic field generating mechanism on the upper portion, the electromagnet is powered on to generate a magnetic field to be matched with the testing sorting machine to test the Hall element, and the Hall element testing device has the advantages that an existing machine does not need to be modified, large-scale installation can be achieved within a short time, and the Hall element testing device is small, exquisite, easy to install and low in cost and does not affect production of other types of devices.

Description

Technical Field

[0001] This utility model relates to the field of Hall element testing technology, specifically a Hall element testing device. Background Technology

[0002] A Hall element is a magnetic sensor based on the Hall effect, capable of detecting magnetic fields and their changes. It can be used in various magnetic field-related applications, converting measured quantities such as current, magnetic field, displacement, angle, rotational speed, and pressure into electrical signals for output.

[0003] Existing testing devices also use the principle of electromagnetic induction of coils to generate a magnetic field to test Hall (magnetic induction) electronic devices. However, the devices are large in size and not easy to install on different testing and sorting machines. They require major modifications to different testing and sorting machines, which is troublesome and costly. Existing testing devices cannot be modified on a large scale in a short period of time, and after installation, the test parameters cannot be fine-tuned in terms of hardware. In addition, the available space in the sorting machine is limited, making installation extremely inconvenient. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, without modifying any existing components of the machine, this invention proposes a Hall element testing device. In addition to being able to set a given current (to generate a magnetic field) via software, the device can also correct errors between multiple workstations caused by assembly position through its fine-tuning components.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a Hall element testing device, including a support mechanism, a mounting base body is movably installed on one side of the support mechanism, and a magnetic field generating mechanism is snapped and fixed on the upper part of the mounting base body;

[0006] The Hall element to be tested is clamped and fixed between the support mechanism and the magnetic field generating mechanism. The magnetic field generating mechanism includes a vertical fixing part at the bottom and a horizontal pressing part at the top. The vertical fixing part and the horizontal pressing part are integrally formed. An electromagnet is slidably connected inside the horizontal pressing part. A fine adjustment component is provided outside the horizontal pressing part. The end of the fine adjustment component abuts against one side of the electromagnet, and an auxiliary fixing component is provided at the lower end of the electromagnet.

[0007] Preferably, the support mechanism includes a support base, the upper end of which is integrally formed with a vertical fixing plate, two sets of threaded fixing holes are symmetrically opened on the vertical fixing plate, and the top of the vertical fixing plate is integrally formed with a component support platform.

[0008] Preferably, the mounting base body is L-shaped, and the vertical part of the mounting base body has two sets of symmetrically arranged position adjustment slots. The support mechanism and the mounting base body are fixedly installed by bolts passing through the position adjustment slots and being threadedly connected to the threaded fixing holes.

[0009] Preferably, the upper surface of one end of the horizontal part of the mounting base body is provided with three sets of locking holes, and the lower end of the vertical fixing part of the magnetic field generating mechanism is integrally formed with a locking post. The mounting base body and the magnetic field generating mechanism are locked together by the cooperation of the locking holes and the locking post.

[0010] Preferably, a cover plate is provided above the horizontal pressing part, a positioning hole is provided at the upper end of the horizontal pressing part, and a positioning post is integrally formed at the lower end of the cover plate. The horizontal pressing part and the cover plate are fixed by the engagement of the positioning hole and the positioning post.

[0011] Preferably, the horizontal pressing part has a positioning groove, the electromagnet is placed in the positioning groove, and the electromagnet and the cover plate are respectively provided with a wire passage groove and a wire through groove.

[0012] Preferably, the fine-tuning component includes an integrally formed fine-tuning knob, a threaded adjusting rod, and an adjusting copper column. A bearing is embedded in the positioning groove. The middle part of the threaded adjusting rod is fixedly inserted into the inner ring of the bearing. The end of the threaded adjusting rod is threadedly connected to the adjusting copper column, and one end of the adjusting copper column is fixedly connected to an electromagnet.

[0013] Preferably, the auxiliary fixing component includes an auxiliary fixing seat slidably connected to the lower part of the horizontal pressing part. The auxiliary fixing seat has limit strips integrally formed on both sides, and five sets of tension springs are bonded to the lower part of the horizontal pressing part. One end of each tension spring is bonded to the lower side of the auxiliary fixing seat, and a fixing groove is provided at the upper end of the auxiliary fixing seat.

[0014] The advantages of this utility model are:

[0015] 1. The mounting base body of this utility model can be installed on top of the support mechanism by bolts, and the vertical position of the mounting base body can also be adjusted by the position adjustment slot. The Hall element is fixed by gravity pressure of the upper magnetic field generating mechanism, and the magnetic field generated by energizing the electromagnet is used to cooperate with the test sorting machine to test the Hall element. When there are differences in the structure of the test base of the sorting machine, only the structure of the mounting base body needs to be adjusted without changing other components. It has the characteristics of not needing to modify the existing machine, being able to install in large batches in a short time, being small and easy to install, having low cost, and not affecting the production of other types of devices.

[0016] 2. The electromagnet in the magnetic field generating mechanism of this utility model can be repositioned by rotating the fine-tuning knob. The copper column and the electromagnet are fixed by an embedded assembly. Rotating the fine-tuning knob drives the adjusting threaded rod to rotate. The threaded rod is rotatably connected to the side wall of the positioning groove by a bearing. The rotation of the threaded rod in place drives the copper column at the end to extend and retract. In this way, the position of the electromagnet can be adjusted without occupying too much space in the positioning groove. This can correct the errors between multiple workstations caused by the assembly position. In addition, the auxiliary fixing component is equipped with an auxiliary fixing seat connected by a tension spring. The auxiliary fixing seat can lock the end of the electromagnet through the fixing groove to prevent the electromagnet from moving. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the magnetic field generating mechanism of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the support mechanism of this utility model;

[0021] Figure 4 This is a schematic diagram of the auxiliary fixing component of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of the fine-tuning component of this utility model.

[0023] In the diagram: 1. Support mechanism; 2. Mounting base body; 3. Magnetic field generating mechanism; 30. Fine-tuning component; 31. Auxiliary fixing component; 101. Support base; 102. Vertical fixing plate; 103. Threaded fixing hole; 104. Component support platform; 201. Position adjustment slot; 202. Locking hole; 301. Vertical fixing part; 302. Horizontal pressing part; 303. Electromagnet; 304. Locking post; 305. Cover plate; 306. Positioning hole; 307. Positioning post; 308. Positioning groove; 309. Wire passage groove; 310. Wire through groove; 311. Fine-tuning knob; 312. Threaded adjusting rod; 313. Adjusting block; 314. Auxiliary fixing base; 315. Limiting strip; 316. Tension spring; 317. Fixing groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0025] The following is in conjunction with the appendix Figure 1-5 This application provides further details:

[0026] This application discloses a Hall element testing device. (Refer to...) Figure 1 , Figure 2 and Figure 3 A Hall element testing device includes a support mechanism 1, which is an inherent component of the testing and sorting machine. A mounting base body 2 is movably mounted on one side of the support mechanism 1. When there are differences in the support mechanism 1 on the testing base of the sorting machine, only the structure of the mounting base body 2 needs to be adjusted without changing other components. The support mechanism 1 includes a support base 101, and a vertical fixing plate 102 is integrally formed on the upper end of the support base 101. Two sets of threaded fixing holes 103 are symmetrically opened on the vertical fixing plate 102. An element support platform 104 is integrally formed on the top of the vertical fixing plate 102. The mounting base body 2 is L-shaped, and two sets of symmetrically arranged position adjustment slots 201 are opened on the vertical part of the mounting base body 2. The support mechanism 1 and the mounting base body 2 are fixedly installed by bolts passing through the position adjustment slots 201 and threadedly connected to the threaded fixing holes 103. The vertical position of the mounting base body 2 can be adjusted by the position adjustment slots 201.

[0027] Reference Figure 1 and Figure 2 A magnetic field generating mechanism 3 is snapped and fixed to the upper part of the mounting base body 2. Three sets of snap holes 202 are opened on the upper surface of one end of the horizontal part of the mounting base body 2. A snap-fit ​​post 304 is integrally formed at the lower end of the vertical fixing part 301 of the magnetic field generating mechanism 3. The mounting base body 2 and the magnetic field generating mechanism 3 are snapped and fixed together by the cooperation of the snap holes 202 and the snap-fit ​​post 304.

[0028] Reference Figure 1The Hall element to be tested is clamped and fixed between the support mechanism 1 and the magnetic field generating mechanism 3. The magnetic field generating mechanism 3 includes a vertical fixing part 301 at the bottom and a horizontal pressing part 302 at the top. The vertical fixing part 301 and the horizontal pressing part 302 are integrally formed. An electromagnet 303 is slidably connected inside the horizontal pressing part 302. A cover plate 305 is provided above the horizontal pressing part 302. A positioning hole 306 is opened at the upper end of the horizontal pressing part 302. A positioning post 307 is integrally formed at the lower end of the cover plate 305. The horizontal pressing part 302 and the cover plate 305 are fixed by the cooperation of the positioning hole 306 and the positioning post 307. The cover plate 305 can play a role in dust prevention, which to a certain extent reduces the inability of the coil heat to be effectively dissipated due to dust covering the electromagnet 303.

[0029] Reference Figure 1 and Figure 5 A fine-tuning component 30 is provided on the outside of the horizontal pressing part 302. The end of the fine-tuning component 30 is fixedly connected to one side of the electromagnet 303. The fine-tuning component 30 includes an integrally formed fine-tuning knob 311, a threaded adjusting rod 312 and an adjusting copper column 313. A bearing 318 is embedded in the positioning groove 308. The middle part of the threaded adjusting rod 312 is fixedly inserted into the inner ring of the bearing 318. The end of the threaded adjusting rod 312 and the adjusting copper column 313 are threadedly connected. One end of the adjusting copper column 313 is fixedly connected to the electromagnet 303. The adjusting copper column 313 and the electromagnet 303 are fixedly embedded. Both sides of the electromagnet 303 are in contact with the positioning groove 308. By rotating the fine-tuning knob 311, the lateral position of the electromagnet 303 can be adjusted, which can correct the error between multiple stations caused by the assembly position.

[0030] Reference Figure 1 and Figure 4 An auxiliary fixing component 31 is provided at the lower end of the electromagnet 303. The auxiliary fixing component 31 includes an auxiliary fixing seat 314 slidably connected to the lower part of the horizontal pressing part 302. Limiting strips 315 are integrally formed on both sides of the auxiliary fixing seat 314. The limiting strips 315 can prevent the auxiliary fixing seat 314 from falling off. Five sets of tension springs 316 are bonded to the lower part of the horizontal pressing part 302. One end of the tension spring 316 is bonded to the lower side of the auxiliary fixing seat 314. A fixing groove 317 is provided at the upper end of the auxiliary fixing seat 314. The fixing groove 317 can hold the end of the electromagnet 303. The tension springs 316 cooperate to press the outer end of the electromagnet 303 to prevent the electromagnet 303 from falling off when the fine-tuning component 30 is adjusting its position.

[0031] Reference Figure 1The horizontal pressing part 302 has a positioning groove 308. The electromagnet 303 is placed in the positioning groove 308. The electromagnet 303 and the cover plate 305 have a wire groove 309 and a wire through groove 310 respectively. The two ends of the coil of the electromagnet 303 pass through the wire groove 309 and the wire through groove 310 in sequence and are connected to the external circuit. Then, a magnetic field can be generated to test the Hall element at the bottom.

[0032] Working principle: Before testing, the mounting base body 2 is connected to the support mechanism 1 on the test sorting machine by bolting through the position adjustment slot 201. Then, the Hall element is placed on the element support platform 104. Then, the snap-fit ​​post 304 at the bottom of the magnetic field generating mechanism 3 is inserted into the snap-fit ​​hole 202 on the mounting base body 2. The Hall element is positioned by the gravity of the magnetic field generating mechanism 3. Then, the position of the electromagnet 303 is adjusted by rotating the fine adjustment knob 311. The power supply of the electromagnet 303 is controlled by external software to generate a magnetic field for testing.

[0033] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A Hall element testing device, characterized in that: Includes a support mechanism (1), on one side of which a mounting base body (2) is movably mounted, and on the upper part of the mounting base body (2) a magnetic field generating mechanism (3) is snapped and fixed. The Hall element to be tested is clamped and fixed between the support mechanism (1) and the magnetic field generating mechanism (3). The magnetic field generating mechanism (3) includes a vertical fixing part (301) at the bottom and a horizontal pressing part (302) at the top. The vertical fixing part (301) and the horizontal pressing part (302) are integrally formed. An electromagnet (303) is slidably connected inside the horizontal pressing part (302). A fine adjustment component (30) is provided outside the horizontal pressing part (302). The end of the fine adjustment component (30) abuts against one side of the electromagnet (303), and an auxiliary fixing component (31) is provided at the lower end of the electromagnet (303).

2. The Hall element testing device according to claim 1, characterized in that: The support mechanism (1) includes a support base (101), and a vertical fixing plate (102) is integrally formed on the upper end of the support base (101). Two sets of threaded fixing holes (103) are symmetrically opened on the vertical fixing plate (102), and a component support platform (104) is integrally formed on the top of the vertical fixing plate (102).

3. The Hall element testing device according to claim 2, characterized in that: The mounting base body (2) is L-shaped, and the vertical part of the mounting base body (2) is provided with two sets of symmetrically arranged position adjustment slots (201). The support mechanism (1) and the mounting base body (2) are fixedly installed by bolts passing through the position adjustment slots (201) and threadedly connected to the threaded fixing holes (103).

4. The Hall element testing device according to claim 1, characterized in that: The upper surface of one end of the horizontal part of the mounting base body (2) is provided with three sets of locking holes (202). The lower end of the vertical fixing part (301) of the magnetic field generating mechanism (3) is integrally formed with a locking post (304). The mounting base body (2) and the magnetic field generating mechanism (3) are locked together by the locking holes (202) and the locking post (304).

5. The Hall element testing device according to claim 1, characterized in that: A cover plate (305) is provided above the horizontal pressing part (302). A positioning hole (306) is provided at the upper end of the horizontal pressing part (302). A positioning post (307) is integrally formed at the lower end of the cover plate (305). The horizontal pressing part (302) and the cover plate (305) are fixed by the engagement of the positioning hole (306) and the positioning post (307).

6. The Hall element testing device according to claim 5, characterized in that: The horizontal pressing part (302) is provided with a positioning groove (308), the electromagnet (303) is placed in the positioning groove (308), and the electromagnet (303) and the cover plate (305) are respectively provided with a wire groove (309) and a wire through groove (310).

7. The Hall element testing device according to claim 6, characterized in that: The fine-tuning component (30) includes an integrally formed fine-tuning knob (311), a threaded adjustment rod (312), and an adjustment copper column (313). The positioning groove (308) is fitted with a bearing (318). The middle part of the threaded adjustment rod (312) is fixedly inserted into the inner ring of the bearing (318). The end of the threaded adjustment rod (312) is threadedly connected to the adjustment copper column (313), and one end of the adjustment copper column (313) is fixedly connected to the electromagnet (303).

8. The Hall element testing device according to claim 1, characterized in that: The auxiliary fixing component (31) includes an auxiliary fixing seat (314) slidably connected to the lower part of the horizontal pressing part (302). Limiting strips (315) are integrally formed on both sides of the auxiliary fixing seat (314), and five sets of tension springs (316) are bonded to the lower part of the horizontal pressing part (302). One end of the tension spring (316) is bonded to the lower side of the auxiliary fixing seat (314), and a fixing groove (317) is provided at the upper end of the auxiliary fixing seat (314).

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