Switchable inductor module

Abstract

The utility model discloses a switchable inductor module. The switchable inductor module comprises a box body, and a switching control assembly, a switching mechanism, a connecting copper bar and a plurality of inductors with different inductance values which are connected in the box body, the switching control assembly comprises a plurality of switching single bodies, the switching single bodies are connected with inductors with different inductance values, the inductors are connected with the connecting copper bars, and the ends of the switching single bodies can be separated from or connected with the connecting copper bars. The switching mechanism used for driving the switching unit to be separated from or connected with the connecting copper bar is connected with the switching unit. The beneficial effects of the utility model are that after the end parts of the switching single bodies connected with different inductors are connected with the connecting copper bars, the inductance output values of different inductance values are formed through superposition, and the test requirements of different modules are met.

Description

Technical Field

[0001] The utility model relates to the technical field of detection equipment, in particular to a switchable inductance module. Background Art

[0002] Currently, most of the inductors on semiconductor testing equipment are in the form of single inductors and cannot be used in a stacked manner. To test a variety of current forms and sizes, inductors with different inductances are required, which occupy a large space, increase the weight of the equipment, and increase the cost.

[0003] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the utility model, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art known to ordinary technicians in this field. Utility Model Content

[0004] The technical problem to be solved by the utility model is how to solve the problem that the current semiconductor test equipment requires inductors of different inductances, which results in a relatively large volume and weight.

[0005] The utility model solves the above technical problems through the following technical means:

[0006] A switchable inductor module comprises a box body, a switching control component connected in the box body, a switching mechanism, a connecting copper bus, and a plurality of inductors with different inductances; the switching control component comprises a plurality of switching monomers, each of the switching monomers is respectively connected to an inductor with a different inductance, the inductor is connected to the connecting copper bus, the end of the switching monomer can be separated from or connected to the connecting copper bus, and the switching mechanism for driving the switching monomer to separate from or connect to the connecting copper bus is connected to the switching monomer.

[0007] In the utility model, the switching unit is powered by the switching mechanism to separate or connect the end of the switching unit from the connecting copper bar. After the end of the switching unit with different inductances is connected to the connecting copper bar, the inductance output values ​​with different inductances are superimposed to meet the testing requirements of different modules. In the utility model, each functional device is assembled in a closed box to reduce the noise of inductance switching.

[0008] Preferably, the switching unit is a cylinder, and the switching mechanism includes a plurality of solenoid valves, each of which is connected to the cylinder respectively.

[0009] Preferably, the box body is provided with an air source inlet connection end, and the air source inlet connection end is connected to the solenoid valve.

[0010] Preferably, the air inlet end of each cylinder is also connected to an air volume speed regulating valve.

[0011] Preferably, the switching control assembly further comprises a mounting seat, the bottom of the mounting seat is fixedly connected to the bottom surface of the box body, and a plurality of the switching units are connected to the mounting seat in parallel.

[0012] Preferably, the connecting copper busbar comprises a plurality of copper busbar parts, the copper busbar parts are spaced apart from each other on the bottom surface of the connection box, the end of the switching unit comprises a probe, the probe is separated from or connected to the copper busbar parts, and the copper busbar parts are respectively connected to inductors of different inductances.

[0013] Preferably, the copper busbar splits are arranged in a row, and the first and last copper busbar splits are respectively connected to the positive and negative electrodes of the output component.

[0014] Preferably, the bottom of the inductor is bolted to the box through an insulating member.

[0015] Preferably, it also includes an output component, which is connected to the side wall of the box body and is connected to the connecting copper busbar.

[0016] Preferably, it further comprises an inductor box signal control board, wherein the inductor box signal control board is connected to the side wall of the box body, and the inductor box signal control board is electrically connected to the switching mechanism.

[0017] The advantages of the utility model are:

[0018] In the utility model, the switching unit is powered by a switching mechanism to separate or connect the end of the switching unit from the connecting copper bus. After the ends of the switching units with different inductances are connected to the connecting copper bus, inductance output values ​​with different inductances are superimposed to meet the testing requirements of different modules.

[0019] In the utility model, various functional devices are assembled in a closed box to reduce the noise of inductor switching. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of a switchable inductor module according to an embodiment of the utility model;

[0021] Figure 2 It is an exploded view of the switchable inductor module of the embodiment of the utility model;

[0022] Figure 3 This is a top view of the interior of the switchable inductor module of the embodiment of the utility model;

[0023] Figure 4 It is a structural schematic diagram of a switching control component of an embodiment of the utility model;

[0024] Figure 5 This is a schematic diagram of the structure of the switching unit in the embodiment of the utility model;

[0025] Figure 6 It is a schematic diagram of the structure of the probe of the embodiment of the utility model;

[0026] Figure 7 This is a schematic diagram of the structure of the switching mechanism of the embodiment of the utility model;

[0027] Figure 8 This is a schematic diagram of the inductor connection of an embodiment of the utility model;

[0028] Fig. 9 It is a schematic diagram of the end face of the switchable inductor module according to an embodiment of the utility model;

[0029] Fig.10 It is a structural schematic diagram of the inductor box signal control board of the embodiment of the utility model;

[0030] Fig.11 It is a schematic diagram of the structure of the output component of the embodiment of the utility model;

[0031] Fig.12 is a cross-sectional view of a probe according to an embodiment of the utility model;

[0032] Fig.13 It is a schematic diagram of the structure of the inductor of the embodiment of the utility model;

[0033] Fig.14 It is a schematic diagram of the structure of the inductor of the embodiment of the utility model;

[0034] Numbers in the figure:

[0035] 1. Box body; 11. Gas source inlet connection end; 2. Switching control component; 21. Switching unit; 221. Left mounting plate; 222. Right mounting plate; 223. Bracket back plate; 224. Epoxy base; 225. Cylinder mounting back plate; 22. Mounting seat; 23. Probe; 24. Gas volume speed regulating valve; 3. Switching mechanism; 4. Connecting copper busbar; 41. Copper busbar split; 5. Inductor; 51. First customized hollow inductor; 52. First inductor fixing piece; 53. Second inductor fixing piece; 6. Output component; 61. Positive output copper busbar; 62. Insulating plastic part; 63. Lapping bar; 7. Inductor box signal control board; 71. Mounting board; 72. Control signal interface; 73. Feedback signal port; 8. Resistor auxiliary board. DETAILED DESCRIPTION

[0036] In order to make the purpose, technical solution and advantages of the embodiments of the utility model clearer, the technical solution in the embodiments of the utility model will be clearly and completely described below in combination with the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] Embodiment 1:

[0038] like Figure 1 , Figure 2 , Figure 3 As shown, the switchable inductor module includes a box 1 and a switching control component 2, a switching mechanism 3, a connecting copper bus 4, and a plurality of inductors 5 with different inductances connected in the box 1; the switching control component 2 includes a plurality of switching monomers 21, each of the switching monomers 21 is respectively connected to an inductor 5 with different inductances, the inductor 5 is connected to the connecting copper bus 4, the end of the switching monomer 21 can be separated from or connected to the connecting copper bus 4, the switching mechanism 3 is used to drive the switching monomer 21 to separate from or connect to the connecting copper bus 4, and the switching mechanism 3 is connected to the switching monomer 21.

[0039] Specifically, in this embodiment, the box body 1 is a rectangular structure, including a bottom plate, a top plate and four side plates connected by L-shaped connectors to form a rectangular cavity; the bottom plate, the top plate, the side plates and the L-shaped connectors are fixed by screws, which is convenient for disassembly and easy to check the internal situation of the box body 1. Other components are located in the box body 1 or installed on the side plates. Figure 1 As shown, the output assembly 6 is installed on its left end face, and reference is made to Figure 7 , Fig.10 As shown, the output component 6 includes a positive electrode and a negative electrode, and both the positive electrode and the negative electrode include an access terminal located inside the box body 1 and an output terminal located outside the box body, and the access terminal and the access terminal are connected to the connecting copper bus 4 through a cable to achieve circuit connection. The output component 6 is connected to the side wall of the box body 1, and the output component 6 is connected to the connecting copper bus 4. An air source inlet connection terminal 11 is installed on the front panel of the box body 1, which is an interface for supplying air to the cylinder. Two handles are also installed (the handle model can be LS516-75), which is convenient for assembly to the cabinet and pulling out during maintenance. The upper cover is divided into two parts. Considering that the switching control component 2 is more likely to be overhauled, the cover above the switching control component 2 is smaller and can be disassembled when the space is small.

[0040] like Figure 4As shown, the switching control component 2 also includes a mounting base 22, and the bottom of the mounting base 22 is fixedly connected to the bottom surface of the box body 1. The mounting base 22 includes a left mounting plate 221, a right mounting plate 222, a bracket back plate 223, an epoxy base 224, and a cylinder mounting back plate 225. The left mounting plate 221 and the right mounting plate 222 are respectively mounted on the two ends of the bracket back plate 223 by screws. The epoxy base 224 is connected to the bottom of the left mounting plate 221, the right mounting plate 222, and the bracket back plate 223, thereby forming a box-like structure with openings on the top and the side. The cylinder mounting back plate 225 is connected to the inner wall of the bracket back plate 223, and the switching unit 21 is fixedly mounted on the cylinder mounting back plate 225 side by side. As shown Figure 4 , Figure 5 , Figure 6 As shown, in this embodiment, the switching unit 21 is a cylinder, and the bottom of the cylinder is connected to a probe 23. The cylinder movement will move the probe 23 downward to connect the copper bar 4 and connect the inductor 5 with different inductances. The air intake end of each cylinder is also connected to an air volume speed regulating valve 24, which can be used to adjust the air intake of the cylinder to control the speed of the cylinder operation and further reduce noise. The cylinder is a double cylinder with two piston rods selected from the SMC brand, which increases the accuracy and stability of the operation and increases the service life.

[0041] like Figure 6 As shown, the switching mechanism 3 includes a plurality of solenoid valves 31, each of which is connected to a cylinder, and the solenoid valve 31 can control the cylinder movement through an electrical signal. On the right end face of the housing 1, an air source inlet connection terminal 11 is provided, and the air source inlet connection terminal 11 is connected to the solenoid valve 31. The solenoid valve 31 is a five-position two-way double electric control. There are two solenoid coils. When the positive action coil is energized, the positive action air circuit is connected (there is air at the positive action outlet). Even if the positive action coil is de-energized, the positive action air circuit is still connected, and it will be maintained until the reverse action coil is energized. When the reverse action coil is energized, the reverse action air circuit is connected (there is air at the reverse action outlet). Even if the reverse action coil is de-energized, the reverse action air circuit is still connected, and it will be maintained until the positive action coil is energized. The whole is equivalent to "self-locking". Based on this characteristic of the two-position five-way double-electric solenoid valve, when the PLC is programming, the solenoid coil can be operated for 1-2 seconds, which can protect the solenoid valve coil from being damaged.

[0042] like Figure 3 , Figure 7As shown, the connecting copper bar 4 includes a plurality of copper bar segments 41, and the copper bar segments 41 are spaced apart from each other and connected to the bottom surface of the mounting seat 22. The probe 23 can be separated from or connected to the copper bar segments 41 under the action of the cylinder, and the copper bar segments 41 are respectively connected to inductors 5 of different inductances. The copper bar segments 41 are arranged in a row, and the copper bar segments 41 at the first and last positions are respectively connected to the positive and negative poles of the output component 6. In this embodiment, the inductor 5 includes eight inductors 5 of different inductances. Figure 7 As shown, the copper bar split 41 on the far left is connected to the positive pole of the output component 6 and the inductor 5 with an inductance of 1280μH, and the inductors 5 with inductances of 1280μH, 640μH, 320μH, 160μH, 80μH, 40μH, 20μH, and 10μH are connected to the copper bar split 41 in sequence, and the copper bar split 41 on the far right is also connected to the negative pole of the output component 6. The probe 23 is connected to the copper bar split 41 by the cylinder going down, and the inductor 5 connected to the copper bar split 41 can be connected. The bottom of the inductor 5 is bolted to the box body 1 through an insulating member. The bottom of the copper busbar split 41 is locked on the epoxy base 224, and the surface is in contact with the probe 23 controlled by the cylinder. The opening at the end is connected to the inductor 5 through a wire. Different inductors 5 are turned on by switching the downward contact of the cylinder, and different inductance values ​​will appear, which are output from the output component 6 at the tail of the inductor box to the required part of the test machine.

[0043] The output component 6 includes a positive electrode connection terminal and a negative electrode connection terminal, both of which are composed of insulating plastic parts and copper bars. The plastic parts are standard parts for mold opening and match the positive and negative copper bars. Fig.11 As shown, taking the positive electrode connection end as an example, the positive electrode connection end includes a positive electrode output copper busbar 61, an insulating plastic part 62, and a lap bar 63. One end of the positive electrode output copper busbar 61 is embedded in the insulating plastic part 62 and connected to the lap bar 63. The positive electrode output copper busbar 61 and the lap bar 63 are connected by screws. A through hole is opened in the left protruding part of the positive electrode output copper busbar 61, and a through hole is also opened in the lap bar 63 for connecting with a cable.

[0044] like Figure 8 , Fig. 9As shown, the switchable inductor module also includes an inductor box signal control board 7, which is connected to the side wall of the box body 1, and the inductor box signal control board 7 is electrically connected to the switching mechanism 3. The inductor box signal control board 7 includes a mounting plate 71 and a control signal interface 72 and a feedback signal port 73 connected to the mounting plate 71. The mounting plate 71 is connected to the inner side of the box body 1 by bolts, and the control signal interface 72 and the feedback signal port 73 extend to the outside of the box body 1. The external PLC module is connected to the control signal interface 72 and the feedback signal port 73 through the DB line. The control signal interface 72 is also connected to the solenoid valve 31, and the feedback signal port 73 is connected to the magnetic switch on the cylinder, so as to realize the control of the gas path. The control signal interface 72 gives a signal to the solenoid valve 31, and the coils at both ends of the solenoid valve 31 push the internal piston to control the airflow, thereby pushing the cylinder downward, and the cylinder upward respectively has a magnetic switch, and the in-place reminder is given to the feedback signal port 73, so that the in-place signal will be given to the PLC control part of the test equipment. The setting of these control signals is input through written software. The resistor auxiliary board 8 is connected to the control circuit. As the number of switching times increases, the stability of signal transmission is increased to ensure the smooth operation of the equipment.

[0045] In this embodiment, the working gas is introduced through the gas source inlet connection end 11. When the inductance box is working, the PLC module issues an instruction, which is transmitted to the PLC peripheral board through the corresponding control channel. The PLC peripheral board transmits the signal to the control signal interface 72 through the DB line. The solenoid valve 31 receiving the signal controls the gas path. The cylinder pushes the probe 23 downward according to the control instruction, connects the circuit, and then the current flows through the corresponding inductor 5 to the output component 6, and then flows to the capacitor component through the cable. After the end of the switching monomer 21 connected to different inductances is connected to the connecting copper bar 4, the inductance output value of different inductances is superimposed to meet the test requirements of different modules. In this embodiment, each functional device is assembled in a closed box 1, which conforms to the idea of ​​modular design, and the assembled structure is convenient for disassembly and assembly and later maintenance. A closed cabin is formed, and the noise during the operation of the mechanism is reduced to a certain extent. The front is the input of the electrical interface, which is in an obvious position and convenient for plugging and unplugging the DB head. At the back is the output wiring copper bar, installed on the side. It is modular and convenient for wiring and replacement, reducing the noise of inductor 5 switching.

[0046] Embodiment 2:

[0047] like Fig.12As shown, in this embodiment, on the basis of the first embodiment, the probe 23 includes a peek fixing block 241, a probe body 242, a connecting copper block 243, a crown spring 244, and an epoxy fixing block 245; the connecting copper block 243 is connected to the upper part of the peek fixing block 241, the bottom of the epoxy fixing block 245 accommodates the connecting copper block 243 and the peek fixing block 241, and the two ends of the peek fixing block 241 are fixedly connected to the epoxy fixing block 245 by screws. The probe body 242 passes through the top of the connecting copper block 243, and its lower half passes through the peek fixing block 241 and passes out of the peek fixing block 241. The top of the probe body 242 is locked by a nut, and the bottom can be connected to the peek fixing block 241 by a retaining spring. The connecting copper block 243 includes a plurality of stepped holes in the vertical direction, the probe body 242 passes through the stepped holes, the crown spring 244 is installed in the stepped holes, and is sleeved on the outside of the probe body 242, and the crown spring 244 is connected to the probe body 242. The top of the epoxy fixing block 245 is locked onto the push block of the cylinder.

[0048] The probe 23 is a detachable structure fixed by screws. The internal connecting copper block 243 and the crown spring 244 are connected to the lower probe body 242 to ensure the flow capacity. The lower end of the probe body 242 can be a spring structure to offset the unevenness during contact, ensure full contact, and prevent sparking. The top of the probe body 242 is fixed by a nut. As a consumable part, it must be easy to replace.

[0049] like Fig.13 As shown, the inductor 5 is in two different forms, which may include a first custom hollow inductor 51 and a first inductor fixing member 52 with insulated ends, and the first custom hollow inductor 51 is fixed to the first inductor fixing member 52 by screws. Fig.14 As shown, if the inductor 5 is longer, a second inductor fixing member 53 may be added in the middle.

[0050] A certain distance is maintained between each inductor 5 to prevent interference between the inductors 5 during operation, and the four corners are also firmly fixed. The inductor 5 is customized to ensure the accuracy of the inductance value, providing favorable conditions for mass production. The inductor 5 is fixed at both ends with epoxy insulators to ensure the working distance between the inductors 5 and to ensure that the inductors do not interfere with each other.

[0051] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A switchable inductor module, characterized in that: It includes a box body and a switching control component, a switching mechanism, a connecting copper bus, and a plurality of inductors with different inductances connected in the box body; the switching control component includes a plurality of switching monomers, each of which is respectively connected to an inductor with different inductances, the inductor is connected to the connecting copper bus, the end of the switching monomer can be separated from or connected to the connecting copper bus, and the switching mechanism for driving the switching monomer to separate or connect the connecting copper bus is connected to the switching monomer.

2. The switchable inductor module according to claim 1, characterized in that: The switching unit is a cylinder, and the switching mechanism includes a plurality of solenoid valves, each of which is connected to the cylinder.

3. The switchable inductor module according to claim 2, characterized in that: The box body is provided with an air source inlet connection end, and the air source inlet connection end is connected to the solenoid valve.

4. The switchable inductor module according to claim 2, characterized in that: The air inlet end of each cylinder is also connected to an air volume speed regulating valve.

5. The switchable inductor module according to claim 1, characterized in that: The switch control assembly also includes a mounting seat, the bottom of which is fixedly connected to the bottom surface of the box body, and a plurality of the switch units are connected to the mounting seat in parallel.

6. The switchable inductor module according to claim 1, characterized in that: The connecting copper bar includes a plurality of copper bar segments, the copper bar segments are spaced apart from each other on the bottom of the connection box, the end of the switching unit includes a probe, the probe is separated from or connected to the copper bar segments, and the copper bar segments are respectively connected to inductors of different inductances.

7. The switchable inductor module according to claim 6, characterized in that: The copper busbar splits are arranged in a row, and the first and last copper busbar splits are respectively connected to the positive and negative electrodes of the output component.

8. The switchable inductor module according to claim 1, characterized in that: The bottom of the inductor is bolted to the box through an insulating member.

9. The switchable inductor module according to claim 1, characterized in that: It also includes an output component, which is connected to the side wall of the box body and is connected to the connecting copper busbar.

10. The switchable inductor module according to claim 1, characterized in that: It also includes an inductor box signal control board, which is connected to the side wall of the box body and is electrically connected to the switching mechanism.

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