CN213337759U - Programmable high-power load card convenient to control - Google Patents
Programmable high-power load card convenient to control Download PDFInfo
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- CN213337759U CN213337759U CN202022255564.3U CN202022255564U CN213337759U CN 213337759 U CN213337759 U CN 213337759U CN 202022255564 U CN202022255564 U CN 202022255564U CN 213337759 U CN213337759 U CN 213337759U
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- power load
- relay
- load card
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- 239000011111 cardboard Substances 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 7
- 230000017525 heat dissipation Effects 0.000 claims description 5
- 238000012360 testing method Methods 0.000 abstract description 4
- 238000004891 communication Methods 0.000 abstract description 3
- 230000033228 biological regulation Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000007774 longterm Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model discloses a high-power load card able to programme convenient to control, including resistance box, resistance board and relay, the surface of resistance board is provided with a plurality of resistances, and every digit of resistance value can encode 1-9 all numerical values with 1, 1, 2, 5 combination, uses 2 groups each 4 fixed resistance cooperation 2x4 ═ 8 relays can encode 10ohm to 1000 ohm altogether, the step length is 10ohm arbitrary resistance, the inner wall of resistance box is provided with the guide rail, the resistance board is installed on the guide rail, the inboard of resistance board is provided with the mounting panel, the relay equidistance is installed on the mounting panel; the utility model discloses the commonality is good, can encode 10ohm to 1000 ohm, and the step length is 10 ohm's arbitrary resistance, utilizes the power resistance of less special resistance, is 10 ohm-1 Kohm/10ohm step length programmable resistance through the controllable combination of relay, and is equipped with communication interface, can realize programme-controlled, can be used to automatic test field.
Description
Technical Field
The utility model relates to a simulated power load and discharge resistance technical field when automizing the test especially relate to a high-power load card able to programme convenient to control.
Background
The programmable high-power load card is widely applied to debugging and testing of circuits. At present, dozens of resistors are connected in a resistor box used in the market appropriately, and then a multi-position knob switch is used for selecting a resistance value required by a circuit, but the method is troublesome in realizing different resistance values, does not have a control interface, and cannot be used in the field of automatic control, so that a programmable high-power load card convenient to control is urgently needed to be designed to solve the problems.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the commonality that exists among the prior art poor, it is troublesome to change the resistance, does not have communication interface, can not realize programme-controlled shortcoming, and the high-power load card able to programme of a control of being convenient for that provides.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a high-power load card able to programme convenient to control, includes resistance box, resistance board and relay, the surface of resistance board is provided with a plurality of resistances, and every digit of resistance value can encode 1-9 all numerical values with 1, 1, 2, 5 combination, uses 2 each 4 fixed resistance cooperation 2x4 of group altogether and 8 relays can encode 10ohm to 1000 ohm, and the step length is 10 ohm's arbitrary resistance, the inner wall of resistance box is provided with the guide rail, the resistance board is installed on the guide rail, the inboard of resistance board is provided with the mounting panel, the relay equidistance is installed on the mounting panel.
Further, the surface of mounting panel is provided with the cardboard, the rear surface of relay is provided with the draw-in groove, the draw-in groove cover is established on the cardboard, the spacing groove has been seted up to the one end of cardboard, the inboard sliding connection of lower extreme of draw-in groove has the limiting plate, lower extreme one side of relay has closed the knob screw soon, the one end and the limiting plate of knob screw pass through the bearing and rotate and be connected.
Furthermore, the cross-sectional shapes of the clamping plate and the clamping groove are both arranged in a dovetail shape, and the clamping plate and the clamping groove are excessively matched.
Furthermore, all be provided with the ventilation hole on mounting panel, relay, cardboard and the draw-in groove, and the ventilation hole communicates each other.
Furthermore, the outside sliding connection of guide rail has the guide holder, the guide holder rotates through the pivot and installs in one side of resistance board, the inside fixedly connected with of resistance box adjusts the seat, the upside of adjusting the seat is connected with screw-nut, screw-nut's upper end is rotated through the pivot and is connected with the one end of resistance board.
Furthermore, the inside of adjusting the seat is rotated through the pivot and is connected with accommodate the lead screw, screw-nut's lower pot head is established on accommodate the lead screw, accommodate the lead screw's one end fixedly connected with turbine, one side meshing of turbine has the worm, the worm passes through the bearing rotation with the adjusting the seat and is connected, one side of resistance box is provided with the hand wheel, the one end fixed connection of hand wheel and worm.
Furthermore, a temperature sensor and a humidity sensor are fixedly connected to the inner wall of the resistance box, a fan box is arranged on the outer side of the resistance box, and the inner side of the fan box is communicated with the inner wall of the resistance box.
Furthermore, a fan is arranged on one side inside the fan box, a heating pipe is fixedly connected to the inner wall of the fan box through screws, and heat dissipation holes are formed in the top of the resistance box and the surface of the fan box.
The utility model has the advantages that:
1. the universal programmable resistance tester has good universality, can code any resistance value of 10-1000 ohms and step length of 10 ohms, utilizes less power resistors with special resistance values, can controllably combine 10 ohm-1 Kohm/10ohm step length programmable resistors through a relay, is provided with a communication interface, can realize program control, and can be used in the field of automatic testing.
2. Through cardboard, the draw-in groove of design, break down when using the relay, can the manual rotation knob screw drive the limiting plate take out from the spacing inslot then pull out the draw-in groove from the cardboard can, then overhaul the relay.
3. Through the guide rail, the guide holder and the regulation seat of design, when using, rotate through the hand wheel, drive the accommodate the lead screw rotation in the regulation seat through the meshing with the turbine to make screw-nut remove along accommodate the lead screw, and promote the resistance board and follow the interior roll-off of resistance box, then make the resistance board stick up in one side of resistance box through guide rail and guide holder direction, conveniently overhaul.
4. The temperature and humidity sensor can sense the temperature and humidity in the resistance box, and then the fan and the heating pipe in the fan box ventilate the resistance box, so that heat dissipation or drying is carried out, and the phenomenon that elements in the resistance box are damaged due to overlarge temperature and humidity is avoided.
Drawings
Fig. 1 is a control schematic diagram of a programmable high-power load card convenient to control according to the present invention;
fig. 2 is a resistance value control coding table of the programmable high-power load card convenient to control according to the present invention;
fig. 3 is a schematic view of an installation structure of a programmable high-power load card convenient to control according to the present invention;
fig. 4 is a schematic diagram of a relay mounting structure of a programmable high-power load card convenient to control according to the present invention;
fig. 5 is a schematic diagram of a resistance board connection structure of a programmable high-power load card convenient to control according to the present invention;
fig. 6 is a schematic structural view of a conveniently controlled fan box of a programmable high-power load card.
In the figure: 1 resistance box, 2 louvres, 3 resistance board, 4 regulation seats, 5 guide rails, 6 adjusting screw rods, 7 relays, 8 mounting plates, 9 screw nuts, 10 hand wheels, 11 clamping plates, 12 limiting grooves, 13 knob screws, 14 limiting plates, 15 clamping grooves, 16 ventilation holes, 17 guide seats, 18 worms, 19 turbines, 20 temperature sensors, 21 humidity sensors, 22 fan boxes, 23 heating pipes and 24 fans.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1 to 6, a programmable high-power load card convenient to control includes a resistance box 1, a resistance plate 3 and relays 7, wherein the surface of the resistance plate 3 is provided with a plurality of resistors, each digit of the resistance value can encode all values of 1-9 by 1, 1, 2, 5 combination, 2 groups of 4 fixed resistors are used together to cooperate with 2x4 ═ 8 relays 7, and 10 ohms to 1000 ohms can be encoded, and the step length is any resistance value of 10 ohms, the inner wall of the resistance box 1 is provided with a guide rail 5, the resistance plate 3 is installed on the guide rail 5, the inner side of the resistance plate 3 is provided with an installation plate 8, and the relays 7 are installed on the installation plate 8 at equal intervals.
Further, the surface of the mounting plate 8 is provided with a clamping plate 11, the rear surface of the relay 7 is provided with a clamping groove 15, the clamping groove 15 is sleeved on the clamping plate 11, one end of the clamping plate 11 is provided with a limiting groove 12, the inner side of the lower end of the clamping groove 15 is slidably connected with a limiting plate 14, a knob screw 13 is screwed on one side of the lower end of the relay 7, and one end of the knob screw 13 is rotatably connected with the limiting plate 14 through a bearing.
Further, the cross-sectional shapes of the clamping plate 11 and the clamping groove 15 are both arranged in a dovetail shape, and the clamping plate 11 and the clamping groove 15 are excessively matched.
Furthermore, the mounting plate 8, the relay 7, the clamping plate 11 and the clamping groove 15 are all provided with vent holes 16, and the vent holes 16 are communicated with each other.
Further, the guide seat 17 is connected to the outer side of the guide rail 5 in a sliding manner, the guide seat 17 is rotatably installed on one side of the resistance plate 3 through a rotating shaft, the adjusting seat 4 is fixedly connected to the inside of the resistance box 1, the lead screw nut 9 is connected to the upper side of the adjusting seat 4, and the upper end of the lead screw nut 9 is rotatably connected with one end of the resistance plate 3 through the rotating shaft.
Furthermore, the inside of the adjusting seat 4 is rotatably connected with an adjusting screw rod 6 through a rotating shaft, the lower end of a screw rod nut 9 is sleeved on the adjusting screw rod 6, one end of the adjusting screw rod 6 is fixedly connected with a worm wheel 19, one side of the worm wheel 19 is meshed with a worm 18, the worm 18 is rotatably connected with the adjusting seat 4 through a bearing, one side of the resistance box 1 is provided with a hand wheel 10, and the hand wheel 10 is fixedly connected with one end of the worm 18.
Furthermore, a temperature sensor 20 and a humidity sensor 21 are fixedly connected to the inner wall of the resistor box 1, a fan box 22 is arranged outside the resistor box 1, and the inner side of the fan box 22 is communicated with the inner wall of the resistor box 1.
Furthermore, a fan 24 is arranged on one side inside the fan box 22, a heating pipe 23 is fixedly connected to the inner wall of the fan box 22 through screws, heat dissipation holes 2 are formed in the top of the resistor box 1 and the surface of the fan box 22, and the fan 24 and the heating pipe 23 in the fan box 22 ventilate the resistor box to dissipate heat or dry.
The working principle is as follows: when the device is used, the resistance value on the resistance plate 3 can be encoded with all values of 1-9 by combining 1, 1, 2 and 5 in each digit, 2 groups of 4 fixed resistors are used together with 2x4 which is 8 relays 7, the resistance value can be encoded from 10 ohms to 1000 ohms, the step length is any resistance value of 10 ohms, if the required resistance is 960 ohms, the resistance value control encoding table in figure 2 can show that the K12 and K13 relays 7 in figure 1 can be closed and other relays 7 can be disconnected by looking up the resistance value control encoding table in figure 2, when the electric appliance 7 fails after long-term use, the limiting plate 14 is driven to slide out from the limiting groove 12 by rotating the knob screw 13, then the clamping plate 11 is pulled out from the clamping groove 15, the relay 7 can be detached for maintenance, when the device is used, the temperature and humidity in the resistance box 1 are sensed by the temperature sensor 20 and the humidity sensor 21, then the fan 24 and the heating pipe 23 in the fan box 22 are used for ventilating the resistance box 1, therefore, heat dissipation or drying is carried out, when the resistance on the resistance plate 3 is in a problem, the worm 18 is driven to rotate by rotating the hand wheel 10, the worm 18 drives the worm wheel 19 and the adjusting screw rod 6 to rotate, the worm wheel 19 moves along the adjusting screw rod 6, the upper end of the worm wheel 19 pushes the resistance plate 3 to move, the resistance plate 3 is overturned to slide out of the resistance box 1 to be erected through the guide of the guide seat 17 and the guide rail 5, and then the resistance on the surface of the resistance plate 3 can be overhauled.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (8)
1. The utility model provides a high-power load card able to programme convenient to control, includes resistance box (1), resistance board (3) and relay (7), its characterized in that, the surface of resistance board (3) is provided with a plurality of resistances, and every digit of resistance value can encode 1-9 all numerical values with 1, 1, 2, 5 combination, uses 2 each 4 fixed resistance cooperation 2x4 of group altogether 8 relay (7) can encode 10ohm to 1000 ohm, the step length is 10 ohm's arbitrary resistance, the inner wall of resistance box (1) is provided with guide rail (5), resistance board (3) are installed on guide rail (5), the inboard of resistance board (3) is provided with mounting panel (8), relay (7) equidistance is installed on mounting panel (8).
2. The programmable high-power load card convenient to control according to claim 1, wherein a clamping plate (11) is arranged on the surface of the mounting plate (8), a clamping groove (15) is arranged on the rear surface of the relay (7), the clamping groove (15) is sleeved on the clamping plate (11), a limiting groove (12) is formed in one end of the clamping plate (11), a limiting plate (14) is slidably connected to the inner side of the lower end of the clamping groove (15), a knob screw (13) is screwed on one side of the lower end of the relay (7), and one end of the knob screw (13) is rotatably connected with the limiting plate (14) through a bearing.
3. A programmable high power load card convenient for control according to claim 2, characterized in that the cross-sectional shapes of the card board (11) and the card slot (15) are both arranged in a dovetail shape, and the card board (11) and the card slot (15) adopt an excessive fit.
4. The programmable high-power load card convenient to control as claimed in claim 1, wherein the mounting plate (8), the relay (7), the clamping plate (11) and the clamping groove (15) are all provided with vent holes (16), and the vent holes (16) are communicated with each other.
5. The programmable high-power load card convenient to control according to claim 1, wherein a guide seat (17) is slidably connected to an outer side of the guide rail (5), the guide seat (17) is rotatably installed at one side of the resistance plate (3) through a rotating shaft, an adjusting seat (4) is fixedly connected to an inner portion of the resistance box (1), a lead screw nut (9) is connected to an upper side of the adjusting seat (4), and an upper end of the lead screw nut (9) is rotatably connected to one end of the resistance plate (3) through a rotating shaft.
6. The programmable high-power load card convenient to control as claimed in claim 5, wherein the inside of the adjusting seat (4) is rotatably connected with an adjusting screw rod (6) through a rotating shaft, the lower end of the screw rod nut (9) is sleeved on the adjusting screw rod (6), one end of the adjusting screw rod (6) is fixedly connected with a turbine (19), one side of the turbine (19) is meshed with a worm (18), the worm (18) is rotatably connected with the adjusting seat (4) through a bearing, one side of the resistance box (1) is provided with a hand wheel (10), and the hand wheel (10) is fixedly connected with one end of the worm (18).
7. The programmable high-power load card convenient to control as claimed in claim 1, wherein a temperature sensor (20) and a humidity sensor (21) are fixedly connected to the inner wall of the resistor box (1), a fan box (22) is arranged on the outer side of the resistor box (1), and the inner side of the fan box (22) is communicated with the inner wall of the resistor box (1).
8. The programmable high-power load card convenient to control as claimed in claim 7, wherein a fan (24) is arranged on one side inside the fan box (22), a heating pipe (23) is fixedly connected to the inner wall of the fan box (22) through a screw, and heat dissipation holes (2) are formed in the top of the resistor box (1) and the surface of the fan box (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022255564.3U CN213337759U (en) | 2020-10-12 | 2020-10-12 | Programmable high-power load card convenient to control |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022255564.3U CN213337759U (en) | 2020-10-12 | 2020-10-12 | Programmable high-power load card convenient to control |
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| Publication Number | Publication Date |
|---|---|
| CN213337759U true CN213337759U (en) | 2021-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022255564.3U Active CN213337759U (en) | 2020-10-12 | 2020-10-12 | Programmable high-power load card convenient to control |
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| CN (1) | CN213337759U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN121355045A (en) * | 2025-12-16 | 2026-01-16 | 深圳市卓讯达科技发展有限公司 | A programmable resistor card and its smooth control method and device. |
-
2020
- 2020-10-12 CN CN202022255564.3U patent/CN213337759U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN121355045A (en) * | 2025-12-16 | 2026-01-16 | 深圳市卓讯达科技发展有限公司 | A programmable resistor card and its smooth control method and device. |
| CN121355045B (en) * | 2025-12-16 | 2026-04-28 | 深圳市卓讯达科技发展有限公司 | A programmable resistor card and its smooth control method and device. |
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