CN211955741U - Detector for Hall switch test - Google Patents
Detector for Hall switch test Download PDFInfo
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- CN211955741U CN211955741U CN201922378329.2U CN201922378329U CN211955741U CN 211955741 U CN211955741 U CN 211955741U CN 201922378329 U CN201922378329 U CN 201922378329U CN 211955741 U CN211955741 U CN 211955741U
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Abstract
The utility model relates to a detector for Hall switch test, which comprises a base and a mounting rack; the mounting frame is provided with a lower pressing driving mechanism with a lower limit; the driving end of the downward pressing driving mechanism is connected with a downward pressing block; the bottom side of the lower pressing block is provided with a pressure sensor; a pressure head is connected to the testing head of the pressure sensor; a positioning block is fixed on the base; the bottom side of the positioning block is provided with a sliding chute and is assembled with a differential height drawing plate in a sliding way; when the positioning block positions the Hall switch, the Hall switch falls on the differential height drawing plate; the differential height drawing plate is used for providing supports with different heights for the Hall switch. The utility model discloses a detector for hall switch test can detect hall switch's relevant parameter, guarantees hall switch's outgoing quality; through the design of the differential-height drawing plate, the button pressing amount of each Hall switch to be detected is distributed in a stepped manner, and the real condition of the Hall switch can be reflected by the variation trend of the obtained output signal along with the button pressing amount; simple structure and high detection speed.
Description
Technical Field
The utility model relates to a hall switch detection area especially relates to a detector for hall switch test.
Background
The hall switch a shown in fig. 9 and 10 includes a depressible button E, a magnet D fixed on the button E, and a PCB C integrated with a hall element; a circuit is led out from the PCB C and connected with the connector B, the circuit comprises two power lines and a signal line, when the button E is not pressed, the Hall element is in an idle state, the output signal is 0.5V, when the button E is pressed, the output signal is in a rising trend along with the reduction of the relative distance between the magnet D and the Hall element, and the maximum output signal is 4.5V; and both below 0.5V and above 4.5V are abnormal conditions; because the quality of the adopted low-cost Hall element cannot be guaranteed in the production process, the variation trend of the output signal of the Hall switch is not in accordance with the expectation or exceeds the normal value, sometimes the phenomenon that the Hall switch is not conducted due to assembly errors can occur, and a certain number of defective products can be caused, so that a detector needs to be designed for detecting relevant parameters to remove defective products, however, during manual detection, the pressing amount of the button E is not easy to control, the variation trend of the output signal of the Hall switch can not be truly reflected, and certain difficulty is caused to detection.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a detector for testing the Hall switches, which can detect the relevant parameters of the Hall switches and ensure the delivery quality of each Hall switch; through the design of the differential-height drawing plate, the button pressing amount of each Hall switch to be detected is distributed in a stepped manner, and the real condition of the Hall switch can be reflected by the variation trend of the obtained output signal along with the button pressing amount; simple structure and high detection speed.
The utility model provides a technical scheme that its technical problem adopted is: a detector for testing a Hall switch comprises a base and a mounting rack; the mounting rack is provided with a downward pressing driving mechanism with a lower limit; the driving end of the downward pressing driving mechanism is connected with a downward pressing block; the bottom side of the lower pressing block is provided with a pressure sensor; a pressure head is connected to the testing head of the pressure sensor; a positioning block for positioning the Hall switch is fixed on the base; the bottom side of the positioning block is provided with a sliding chute and is assembled with a differential height drawing plate in a sliding way; when the positioning block positions the Hall switch, the Hall switch falls on the differential height drawing plate; the differential height drawing plate is used for providing supports with different heights for the Hall switch.
Further, a digital display voltmeter and a start-stop switch are further arranged on the base; the base is also internally provided with a power supply module which is used for converting an external alternating current power supply and outputting a direct current power supply; the base is also provided with a test joint; one side of the test connector is connected with the output end of the power supply module and the digital display voltmeter, and the other side of the test connector is connected with a socket connector of the Hall switch and used for providing a direct-current power supply for the Hall switch and transmitting an output signal of the Hall switch to the digital display voltmeter to obtain an intuitive voltage value; the pressure sensor is connected with the pressure tester and used for displaying visual pressure values.
Furthermore, a reference supporting surface is arranged on the differential height drawing plate, when a Hall switch in the positioning block falls on the reference supporting surface and the pressing driving mechanism drives the pressing block to reach a lower limit position, a pressing button of the Hall switch is located at the position of the maximum pressing stroke, the distance between a magnet of the Hall switch and the Hall element is minimum, and the output signal is the maximum value.
Furthermore, a differential height supporting surface which is lower than the reference supporting surface from high to low is further arranged on one side of the differential height drawing plate, which is positioned on the reference supporting surface; the differential height drawing plate is drawn to enable the bottom side of the Hall switch to fall on the differential height supporting surface, so that the pressing button of the Hall switch is relatively lifted, the distance between the magnet of the Hall switch and the Hall element is increased, and the output signal is reduced.
Furthermore, a clamping table is arranged on the other side of the differential height drawing plate, which is positioned on the reference supporting surface; the clamping table forms the limit of the differential height drawing plate when the differential height drawing plate slides at the bottom side of the positioning block.
Furthermore, a shifting column is fixed on the clamping table of the differential height pumping plate and used for facilitating pumping operation of the differential height pumping plate.
Furthermore, a plurality of upper hemispherical grooves are formed in the bottom surface of the differential height pumping plate; the hemispherical grooves correspond to the different height supporting surfaces one by one; a lower hemispherical groove is also formed in the position, corresponding to the upper hemispherical groove of the differential height pumping plate, on the base; a ball is arranged in the lower hemispherical groove; the cooperation of passing through last hemisphere groove and ball realizes taking out the location when board is taken out to poor height, the ball still is used for when breaking away from last hemisphere groove, makes the base pass through the ball and the cooperation of poor height taking out the board and slides, realizes the smooth and easy slip of the relative base of board is taken out to poor height.
Further, the downward pressing driving mechanism comprises a fixing plate fixed on the mounting panel of the mounting frame; the mounting panel is provided with a waist-shaped hole in the vertical direction; the fixing plate penetrates through the waist-shaped hole through a bolt fastener to be fixed with the mounting panel; the fixed plate adjusts the upper and lower positions of the pressure head through the waist-shaped hole and the bolt fastener.
Furthermore, the pressing driving mechanism also comprises an operating rod, a connecting piece, a connecting rod and a guide sleeve; one end of the operating rod is hinged with the top end of the fixing plate, and the guide sleeve is fixed at the bottom end of the fixing plate; the connecting rod penetrates through the guide sleeve from top to bottom and then is connected with the lower pressing plate; one end of the connecting piece is hinged with the other end of the operating rod, and the other end of the connecting piece is hinged with the top end of the connecting rod; one end of the operating rod hinged with the connecting piece extends outwards to form an operating handle; the connecting rod drives the lower pressing plate to move upwards or downwards relative to the guide sleeve by upwards or downwards breaking the operating handle.
Furthermore, a guide rod is further fixed at a position, corresponding to the up-down moving interval of the lower pressing plate, of the mounting frame, and the lower pressing plate is sleeved on the guide rod and moves under the guiding action of the guide rod.
The utility model has the advantages that: the utility model discloses a detector for hall switch test can detect hall switch's relevant parameter, guarantees the outgoing quality of every hall switch; through the design of the differential-height drawing plate, the button pressing amount of each Hall switch to be detected is distributed in a stepped manner, and the real condition of the Hall switch can be reflected by the variation trend of the obtained output signal along with the button pressing amount; the pressing driving mechanism adopts a manual operating rod type connecting rod type driving mechanism and is provided with an upper limit and a lower limit, so that the displacement when the pressing driving mechanism is pressed to the lower limit every time is unchanged; the position of the lower pressure head is controlled by vertically adjusting the fixed plate relative to the mounting panel, the adjustment is convenient, and the reference supporting surface of the differential-height drawing plate is matched to ensure that the button also reaches the maximum pressing stroke when the lower pressure head is positioned at the lower limit position of the Hall switch positioned on the reference supporting surface; the design of the upper hemispherical groove, the lower hemispherical groove and the ball reduces the friction between the differential height pumping plate and the base, and can ensure the positioning of each differential height supporting surface; simple structure and high detection speed.
Drawings
FIG. 1 is a schematic perspective view of a detector for testing a Hall switch according to an embodiment;
FIG. 2 is a schematic perspective view of a differential elimination high-voltage board of the detector for testing the Hall switch according to the embodiment;
FIG. 3 is a schematic perspective view of a differential height pumping plate of the detector for testing the Hall switch according to the embodiment;
FIG. 4 is a schematic perspective view of another angle of a differential high-voltage board of the detector for testing the Hall switch according to the embodiment;
FIG. 5 is a left side view of an exemplary detector for testing a Hall switch;
FIG. 6 is a diagram illustrating a state where a lower pressing plate of the detector for testing a Hall switch moves to a lower limit according to the embodiment;
FIG. 7 is a schematic diagram of a test state of a Hall switch supported by a reference supporting surface of a differential height pumping plate of the detector for testing the Hall switch according to the embodiment;
FIG. 8 is a schematic diagram illustrating a testing state of a Hall switch supported by a lowest differential height supporting surface of a differential height pumping plate of the detector for testing the Hall switch according to the embodiment;
FIG. 9 is a schematic diagram of a Hall switch under test;
fig. 10 is a schematic diagram of the internal structure of a hall switch to be tested.
Detailed Description
In order to deepen the understanding of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and embodiments, which are only used for explaining the present invention and are not limited to the protection scope of the present invention.
Examples
As shown in fig. 1 to 8, the present embodiment provides a detector for hall switch test, which includes a base 1 and a mounting frame 2; the mounting rack 2 is provided with a downward pressing driving mechanism with a lower limit; the driving end of the downward pressing driving mechanism is connected with a downward pressing block 4; the bottom side of the lower pressing block 4 is provided with a pressure sensor 5; a pressure head 6 is connected to the testing head of the pressure sensor 5; a positioning block 7 for positioning the Hall switch is fixed on the base 1; a sliding groove 16 is arranged at the bottom side of the positioning block 7 and is assembled with a differential height drawing plate 8 in a sliding manner; when the positioning block 7 positions the Hall switch A, the Hall switch A falls on the differential height drawing plate 8; the differential height drawing plate 8 is used for providing supports with different heights for the Hall switch A.
In the detector for testing the hall switch of the embodiment, the base 1 is further provided with a digital display voltmeter 9 and a start-stop switch 10; the base 1 is also internally provided with a power supply module for converting an external alternating current power supply and outputting a direct current power supply; the base 1 is also provided with a test joint; one side of the test connector is respectively connected with the output end of the power module 9 and the digital display voltmeter 9, and the other side of the test connector is connected with the socket connector B of the Hall switch, and the test connector is used for providing a direct-current power supply for the Hall switch A and transmitting an output signal of the Hall switch A to the digital display voltmeter 9 to obtain an intuitive voltage value; the pressure sensor 5 is connected with a pressure tester and used for displaying an intuitive pressure value.
In the detector for testing the hall switch in the embodiment, the differential height drawing plate 8 is provided with the reference supporting surface 19, when the hall switch a in the positioning block 7 falls on the reference supporting surface 19, the pressing driving mechanism drives the pressing block 4 to reach the lower limit, the pressing button E of the hall switch a is located at the position of the maximum pressing stroke, the distance between the magnet D of the hall switch a and the hall element is the minimum, and the output signal is the maximum.
In the detector for testing the hall switch of the present embodiment, the differential height support surface 20 is further disposed on one side of the differential height pumping plate 8, which is located on the reference support surface 19, from high to low and is lower than the reference support surface 19; the differential height pulling plate 8 is pulled to make the bottom side of the Hall switch A fall on the differential height supporting surface 20, so that the press button E of the Hall switch A is relatively lifted, the distance between the magnet D of the Hall switch A and the Hall element is increased, and the output signal is reduced.
In the detector for testing the hall switch in this embodiment, a clamping table 22 is further disposed on the other side of the differential height pumping plate 8, which is located on the reference supporting surface 19; the clamping table 22 forms a limit for the differential height drawing plate 8 when sliding on the bottom side of the positioning block 7.
In the detector for testing the hall switch in the embodiment, the chuck 22 of the differential height pumping plate 8 is further fixed with a shifting column 21 for facilitating the pumping operation of the differential height pumping plate 8.
In the detector for testing the hall switch of the present embodiment, the bottom surface of the differential height pumping plate 8 is further provided with a plurality of upper hemispherical grooves 23; the hemispherical grooves 23 correspond to the differential height supporting surfaces 20 one by one; a lower hemispherical groove 17 is also arranged at the position, corresponding to the upper hemispherical groove 23 of the differential height drawing plate 8, on the base 1; a ball 18 is arranged in the lower hemispherical groove 17; through the cooperation of last hemisphere groove 23 and ball 18, realize taking out the location when board 8 is taken out to poor height, ball 18 still is used for when breaking away from last hemisphere groove 23, makes base 1 take out the board 8 through ball 18 and poor height and cooperates the slip, realizes the smooth and easy slip of board 8 relative base 1 is taken out to poor height.
In the detector for testing the hall switch according to the embodiment, the pressing driving mechanism includes a fixing plate 11 fixed on the mounting panel 3 of the mounting frame 2; the mounting panel 3 is provided with a waist-shaped hole 25 in the vertical direction; the fixing plate 11 passes through the waist-shaped hole 25 through a bolt fastener to be fixed with the mounting panel 3; the fixing plate 11 adjusts the up-down position of the pressure head 6 through the waist-shaped hole 25 and the bolt fastener.
In the detector for testing the hall switch in this embodiment, the pressing driving mechanism further includes an operating rod 12, a connecting member 13, a connecting rod 15 and a guide sleeve 14; one end of the operating rod 12 is hinged with the top end of the fixed plate 11, and the guide sleeve 14 is fixed at the bottom end of the fixed plate 11; the connecting rod 15 penetrates through the guide sleeve 14 from top to bottom and then is connected with the lower pressing plate 4; one end of the connecting piece 13 is hinged with the other end of the operating rod 12, and the other end is hinged with the top end of the connecting rod 15; one end of the operating rod 12 hinged with the connecting piece 13 extends outwards to form an operating handle; the connecting rod 15 drives the lower pressing plate 4 to move upwards or downwards relative to the guide sleeve 14 by pulling the operating handle upwards or downwards.
In the detector for testing the hall switch in the embodiment, a guide rod 24 is further fixed at a position corresponding to an up-down moving interval of the lower pressing plate 4 of the mounting frame 2, and the lower pressing plate 4 is sleeved on the guide rod 24 and moves under the guiding action of the guide rod 24.
According to the detector for testing the Hall switch, the reference supporting surface of the differential height pulling plate slides to the position right below the positioning block, a Hall switch sample is placed in the positioning block, the operating handle is pulled downwards, a pressure head under the lower pressing plate is pressed on a button of the Hall switch, the relative position of the fixing plate and the mounting panel is adjusted to ensure that the button of the Hall switch is just positioned at the maximum stroke at the moment, then the fixing plate is locked and fixed with the mounting panel, the operating handle is pulled upwards, the Hall switch sample is taken out, the detector is switched on, the pressure tester is switched on, an output line of the pressure sensor is connected with the pressure tester, and the preparation work is finished; during testing, a Hall switch to be tested is connected with a testing connector through a connector, a start-stop switch is turned on, the numerical value of a digital display voltmeter is watched, the Hall switch is in an idle state, the Hall switch is placed in a positioning block and falls on a base supporting surface of a differential height pumping plate after passing the detection, an operating handle is pulled downwards to enable a pressure head to be pressed on a button of the Hall switch, the maximum downward pressing stroke of the button is achieved at the moment, the numerical value of the digital display voltmeter is the maximum value of an output signal of the Hall switch, the differential height pumping plate is pulled after passing the detection, the Hall switch falls on the differential height supporting surface, the numerical value of the digital display voltmeter is recorded, the differential height pumping plate is pulled in sequence, the Hall switch is sequentially lowered to the corresponding differential height supporting surface, namely the downward pressing amount of the button of the Hall switch is reduced step by step, and the numerical value of the digital display voltmeter is correspondingly recorded; if the variation trend of the numerical value is in accordance with the trend of decreasing along with the reduction of the push amount of the button, the product is qualified, and then the Hall switch to be tested is tested.
The detector for testing the Hall switches can detect relevant parameters of the Hall switches and ensure the delivery quality of each Hall switch; through the design of the differential-height drawing plate, the button pressing amount of each Hall switch to be detected is distributed in a stepped manner, and the real condition of the Hall switch can be reflected by the variation trend of the obtained output signal along with the button pressing amount; the pressing driving mechanism adopts a manual operating rod type connecting rod type driving mechanism and is provided with an upper limit and a lower limit, so that the displacement when the pressing driving mechanism is pressed to the lower limit every time is unchanged; the position of the lower pressure head is controlled by vertically adjusting the fixed plate relative to the mounting panel, the adjustment is convenient, and the reference supporting surface of the differential-height drawing plate is matched to ensure that the button also reaches the maximum pressing stroke when the lower pressure head is positioned at the lower limit position of the Hall switch positioned on the reference supporting surface; the design of the upper hemispherical groove, the lower hemispherical groove and the ball reduces the friction between the differential height pumping plate and the base, and can ensure the positioning of each differential height supporting surface; simple structure and high detection speed.
It should be noted that, the specific circuit connection of the present detector is not specifically limited in the present application, as long as the above corresponding detection process can be implemented, and the protection point of the present application lies in the whole structure.
The above-mentioned embodiments should not limit the present invention in any way, and all the technical solutions obtained by adopting equivalent replacement or equivalent conversion fall within the protection scope of the present invention.
Claims (10)
1. The utility model provides a detector for hall switch test which characterized in that: comprises a base and a mounting rack; the mounting rack is provided with a downward pressing driving mechanism with a lower limit; the driving end of the downward pressing driving mechanism is connected with a downward pressing block; the bottom side of the lower pressing block is provided with a pressure sensor; a pressure head is connected to the testing head of the pressure sensor; a positioning block for positioning the Hall switch is fixed on the base; the bottom side of the positioning block is provided with a sliding chute and is assembled with a differential height drawing plate in a sliding way; when the positioning block positions the Hall switch, the Hall switch falls on the differential height drawing plate; the differential height drawing plate is used for providing supports with different heights for the Hall switch.
2. The detector of claim 1, wherein: the base is also provided with a digital display voltmeter and a start-stop switch; the base is also internally provided with a power supply module which is used for converting an external alternating current power supply and outputting a direct current power supply; the base is also provided with a test joint; one side of the test connector is connected with the output end of the power supply module and the digital display voltmeter, and the other side of the test connector is connected with a socket connector of the Hall switch and used for providing a direct-current power supply for the Hall switch and transmitting an output signal of the Hall switch to the digital display voltmeter to obtain an intuitive voltage value; the pressure sensor is connected with the pressure tester and used for displaying visual pressure values.
3. The detector of claim 2, wherein: the differential height drawing plate is provided with a reference supporting surface, when a Hall switch in the positioning block falls on the reference supporting surface and the pressing driving mechanism drives the pressing block to reach the lower limit, the pressing button of the Hall switch is located at the position of the maximum pressing stroke, the distance between the magnet of the Hall switch and the Hall element is minimum, and the output signal is the maximum value.
4. The detector of claim 3, wherein: the differential height support surface is arranged on one side of the differential height drawing plate, which is positioned on the reference support surface, and is lower than the reference support surface from high to low; the differential height drawing plate is drawn to enable the bottom side of the Hall switch to fall on the differential height supporting surface, so that the pressing button of the Hall switch is relatively lifted, the distance between the magnet of the Hall switch and the Hall element is increased, and the output signal is reduced.
5. The detector of claim 3, wherein: the other side of the differential height drawing plate, which is positioned on the reference supporting surface, is also provided with a clamping table; the clamping table forms the limit of the differential height drawing plate when the differential height drawing plate slides at the bottom side of the positioning block.
6. The detector of claim 5, wherein: the clamping table of the differential height pumping plate is also fixedly provided with a shifting column for facilitating pumping operation of the differential height pumping plate.
7. The detector of claim 4, wherein: the bottom surface of the differential height pumping plate is also provided with a plurality of upper hemispherical grooves; the hemispherical grooves correspond to the different height supporting surfaces one by one; a lower hemispherical groove is also formed in the position, corresponding to the upper hemispherical groove of the differential height pumping plate, on the base; a ball is arranged in the lower hemispherical groove; the cooperation of passing through last hemisphere groove and ball realizes taking out the location when board is taken out to poor height, the ball still is used for when breaking away from last hemisphere groove, makes the base pass through the ball and the cooperation of poor height taking out the board and slides, realizes the smooth and easy slip of the relative base of board is taken out to poor height.
8. The instrumentation of any one of claims 1 to 7, wherein: the downward pressing driving mechanism comprises a fixed plate fixed on the mounting panel of the mounting rack; the mounting panel is provided with a waist-shaped hole in the vertical direction; the fixing plate penetrates through the waist-shaped hole through a bolt fastener to be fixed with the mounting panel; the fixed plate adjusts the upper and lower positions of the pressure head through the waist-shaped hole and the bolt fastener.
9. The testing machine of claim 8, wherein: the pressing driving mechanism further comprises an operating rod, a connecting piece, a connecting rod and a guide sleeve; one end of the operating rod is hinged with the top end of the fixing plate, and the guide sleeve is fixed at the bottom end of the fixing plate; the connecting rod penetrates through the guide sleeve from top to bottom and then is connected with the lower pressing plate; one end of the connecting piece is hinged with the other end of the operating rod, and the other end of the connecting piece is hinged with the top end of the connecting rod; one end of the operating rod hinged with the connecting piece extends outwards to form an operating handle; the connecting rod drives the lower pressing plate to move upwards or downwards relative to the guide sleeve by upwards or downwards breaking the operating handle.
10. The testing machine of claim 8, wherein: the mounting frame is further fixed with a guide rod at a position corresponding to the up-and-down moving interval of the lower pressing plate, and the lower pressing plate is sleeved on the guide rod and moves under the guiding action of the guide rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922378329.2U CN211955741U (en) | 2019-12-26 | 2019-12-26 | Detector for Hall switch test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922378329.2U CN211955741U (en) | 2019-12-26 | 2019-12-26 | Detector for Hall switch test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211955741U true CN211955741U (en) | 2020-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922378329.2U Active CN211955741U (en) | 2019-12-26 | 2019-12-26 | Detector for Hall switch test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211955741U (en) |
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2019
- 2019-12-26 CN CN201922378329.2U patent/CN211955741U/en active Active
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