Economical intelligent test load
By controlling multiple motors with a single driver, combined with feedback regulation using a sliding rheostat and transmitter, the high cost of existing equipment is solved, achieving high-precision load resistance regulation and power loading.
Patent Information
- Application Number
- CN202423264830.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2026-01-20
- Estimated Expiration
- 2034-12-27
AI Technical Summary
Existing three-phase input test load equipment requires multiple drivers and control cables, resulting in high costs and hindering cost savings.
One driver controls three motors. By combining control switches and sliding rheostats, the load resistance can be adjusted synchronously, reducing the number of controller output points and drivers. Combined with transmitter feedback, the adjustment accuracy is improved.
It effectively saves costs while achieving high-precision load resistance adjustment and accurate power loading, meeting the high-precision requirements of equipment testing.
Smart Images
Figure CN223815404U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to test load technical field, concretely relates to an economic intelligent test load. BACKGROUND
[0002] With the gradual development of new energy and various power generation equipment manufacturing development, test load is more and more widely used, and the requirement of load is higher and higher, especially like the equipment test of changing power, requires that power change is adjustable, and is loaded according to specific working condition power, and actual load and theoretical load power need to be high-precision consistent, on the other hand, some functional equipment for civil use starts to pursue cost performance on the basis of meeting the function.
[0003] And for the test load of input three-phase electricity, the currently used mode is that three drivers are set to drive three motors to work, so as to change the resistance value of three slide rheostats, and the above setting needs to increase the output points of the controller, the number of drivers and the number of control cables, which is not conducive to cost saving. UTILITY MODEL CONTENT
[0004] The utility model aims at the above insufficient in prior art, and provides an economic intelligent test load.
[0005] The utility model discloses a kind of economic intelligent test loads, including box;First slide rheostat, second slide rheostat, third slide rheostat, driver, controller, first control switch, second control switch, third control switch, first motor, second motor and third motor are equipped in the box;
[0006] First motor, second motor and third motor are respectively used to control first slide rheostat, second slide rheostat and third slide rheostat;The driver is electrically connected with the controller;First motor is electrically connected with the driver by first control switch;Second motor is electrically connected with the driver by second control switch;Third motor is electrically connected with the driver by third control switch.
[0007] The utility model further is provided with, first slide rheostat, second slide rheostat and third slide rheostat all include fixed seat, porcelain cylinder being equipped in the bottom of fixed seat, screw rod being rotatably equipped in the top of fixed seat, slide seat being set on the outside of screw rod and slide piece being equipped in slide seat;The slide piece is in abutment with the outer wall of porcelain cylinder;
[0008] First motor is connected with the screw rod of first slide rheostat;Second motor is connected with the screw rod of second slide rheostat;Third motor is connected with the screw rod of third slide rheostat.
[0009] The utility model further sets up, the fixed seat is equipped with the guide rail, the guide rail is equipped with the guide block of sliding, the guide block is connected with the sliding seat, the guide rail, screw rod and porcelain cylinder parallelly set up.
[0010] The utility model further sets up, one end of the guide rail is equipped with first limit switch, the other end of the guide rail is equipped with second limit switch, first limit switch and second limit switch are used for abutting with the sliding seat respectively.
[0011] The utility model further sets up, the box is equipped with transmitter, the porcelain cylinder of first sliding rheostat, the porcelain cylinder of second sliding rheostat and the porcelain cylinder of third sliding rheostat are electrically connected with transmitter respectively, transmitter is electrically connected with controller.
[0012] The utility model further sets up, be equipped with support in the box, driver, controller, first control switch, second control switch, third control switch and transmitter are located at the top of support,
[0013] First motor, second motor, third motor, first sliding rheostat, second sliding rheostat and third sliding rheostat are located at the bottom of support.
[0014] The utility model further sets up, the side of the box is equipped with a plurality of heat dissipation holes.
[0015] The utility model further sets up, first motor, second motor and third motor are all step motor.
[0016] The utility model discloses the beneficial effects: the utility model discloses a driver is set up simultaneously, and the first motor, second motor and third motor work is controlled, can reduce the output point number of controller, the number of driver and the quantity of control cable, can effectively save the cost. BRIEF DESCRIPTION OF DRAWINGS
[0017] The utility model is further explained with the drawings, but the embodiment in the drawing does not constitute any limit to the utility model, for the ordinary skill in the art, under the premise that no creative effort is paid, can also obtain other drawings according to the following drawings.
[0018] Fig. 1 It is the electrical schematic diagram of the utility model;
[0019] Fig. 2 It is the structure schematic diagram of the utility model;
[0020] Fig. 3 It is the structure schematic diagram of first sliding rheostat of the utility model;
[0021] The components are as follows: 1. Housing; 11. Heat dissipation holes; 21. First sliding rheostat; 22. Second sliding rheostat; 23. Third sliding rheostat; 31. Driver; 32. Controller; 33. Transmitter; 41. First control switch; 42. Second control switch; 43. Third control switch; 51. First motor; 52. Second motor; 53. Third motor; 6. Fixing base; 61. Ceramic cylinder; 62. Screw; 63. Sliding seat; 64. Sliding plate; 65. Guide rail; 66. Guide block; 71. First limit switch; 72. Second limit switch; 8. Bracket. Detailed Implementation
[0022] The present invention will be further described in conjunction with the following embodiments.
[0023] Depend on Figs. 1 to 3 As can be seen, the economical intelligent test load described in this embodiment includes a housing 1; the housing 1 is provided with a first sliding rheostat 21, a second sliding rheostat 22, a third sliding rheostat 23, a driver 31, a controller 32, a first control switch 41, a second control switch 42, a third control switch 43, a first motor 51, a second motor 52 and a third motor 53.
[0024] The first motor 51, the second motor 52, and the third motor 53 are respectively used to control the first sliding rheostat 21, the second sliding rheostat 22, and the third sliding rheostat 23; the driver 31 is electrically connected to the controller 32; the first motor 51 is electrically connected to the driver 31 through the first control switch 41; the second motor 52 is electrically connected to the driver 31 through the second control switch 42; and the third motor 53 is electrically connected to the driver 31 through the third control switch 43.
[0025] Specifically, the economical intelligent test load described in this embodiment can start or stop the first motor 51, the second motor 52, and the third motor 53 respectively by setting the first control switch 41, the second control switch 42, and the third control switch 43; in addition, by setting a driver 31 to control the first motor 51, the second motor 52, and the third motor 53 to work at the same time, the number of output points of the controller 32, the number of drivers 31, and the number of control cables can be reduced, which can effectively save costs.
[0026] The economical intelligent test load described in this embodiment includes a first sliding rheostat 21, a second sliding rheostat 22, and a third sliding rheostat 23, each comprising a fixed base 6, a ceramic cylinder 61 disposed at the bottom of the fixed base 6, a screw 62 rotatably disposed at the top of the fixed base 6, a sliding seat 63 sleeved outside the screw 62, and a sliding plate 64 disposed on the sliding seat 63; the sliding plate 64 abuts against the outer wall of the ceramic cylinder 61.
[0027] The first motor 51 is connected with the screw rod 62 of the first slide rheostat 21; the second motor 52 is connected with the screw rod 62 of the second slide rheostat 22; the third motor 53 is connected with the screw rod 62 of the third slide rheostat 23.
[0028] Specifically, when the first slide rheostat 21, the second slide rheostat 22 and the third slide rheostat 23 need to be adjusted, the first control switch 41, the second control switch 42 and the third control switch 43 are controlled to be closed, and then the controller 32 controls the driver 31 to output a synchronous signal to the first motor 51, the second motor 52 and the third motor 53, so that the first motor 51, the second motor 52 and the third motor 53 can work synchronously, thereby driving the slide seat 63 to move to change the position of the slide sheet 64 in the porcelain cylinder 61.
[0029] The economic intelligent test load provided by the embodiment is characterized in that the fixed seat 6 is provided with a guide rail 65; the guide rail 65 is slidably provided with a guide block 66; the guide block 66 is connected with the slide seat 63; and the guide rail 65, the screw rod 62 and the porcelain cylinder 61 are arranged in parallel. Through the above arrangement, the slide seat 63 can be stably moved.
[0030] The economic intelligent test load provided by the embodiment is characterized in that one end of the guide rail 65 is provided with a first limit switch 71; the other end of the guide rail 65 is provided with a second limit switch 72; and the first limit switch 71 and the second limit switch 72 are respectively used for abutting against the slide seat 63.
[0031] Specifically, since the controller 32 controls the driver 31 to output a synchronous signal to the first motor 51, the second motor 52 and the third motor 53, so that the first motor 51, the second motor 52 and the third motor 53 work synchronously, it is difficult to control the first motor 51, the second motor 52 and the third motor 53 to work individually, and it is difficult to perform calibration processing.
[0032] Therefore, the first limit switch 71 and the second limit switch 72 are arranged in the embodiment. First, the system will make the driver 31 execute a reverse rotation power signal, and control the first control switch 41, the second control switch 42 and the third control switch 43 to be attracted, until any one of the three slide seats 63 hits the second limit switch 72 and stops reversing.
[0033] Then the first control switch 41 is closed, the second control switch 42 and the third control switch 43 are opened, the reversing is executed again, when the controller 32 detects that the second limit switch 72 of the first slide rheostat 21 is in place, the first control switch 41 and the third control switch 43 are opened, the second control switch 42 is closed, and the reversing is executed once again, when the second limit switch 72 of the second slide rheostat 22 is detected to be in place, the first control switch 41 and the second control switch 42 are opened, the third control switch 43 is closed, and the reversing is executed once again, until all the three second limit switches 72 are in place, and the self-checking program is ended.
[0034] The economic intelligent test load provided by the embodiment is characterized in that the box 1 is provided with a transmitter 33; the porcelain tubes 61 of the first slide rheostat 21, the second slide rheostat 22 and the third slide rheostat 23 are electrically connected with the transmitter 33 respectively; and the transmitter 33 is electrically connected with the controller 32.
[0035] Specifically, the above setting can play a role of negative feedback regulation, when the parameters fed back by the transmitter 33 to the controller 32 do not conform to the preset parameters, the system will automatically adjust to increase or decrease to meet the accuracy.
[0036] The economic intelligent test load provided by the embodiment is characterized in that the box 1 is provided with a support 8; the driver 31, the controller 32, the first control switch 41, the second control switch 42, the third control switch 43 and the transmitter 33 are arranged on the top of the support 8.
[0037] The first motor 51, the second motor 52, the third motor 53, the first slide rheostat 21, the second slide rheostat 22 and the third slide rheostat 23 are arranged on the bottom of the support 8. The above setting makes the overall structure of the economic intelligent test load neat and reliable.
[0038] The economic intelligent test load provided by the embodiment is characterized in that the box 1 is provided with a plurality of heat dissipation holes 11. The above setting facilitates heat dissipation.
[0039] The economic intelligent test load provided by the embodiment is characterized in that the first motor 51, the second motor 52 and the third motor 53 are all step motors. The above setting makes the first motor 51, the second motor 52 and the third motor 53 be able to rotate stably.
[0040] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the protection scope of the present application. Although the present application has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present application can be modified or replaced equivalently without departing from the essence and scope of the technical solutions of the present application.
Claims
1. An economical intelligent test load, characterized in that: Includes a housing (1); the housing (1) is provided with a first sliding rheostat (21), a second sliding rheostat (22), a third sliding rheostat (23), a driver (31), a controller (32), a first control switch (41), a second control switch (42), a third control switch (43), a first motor (51), a second motor (52), and a third motor (53); The first motor (51), the second motor (52), and the third motor (53) are used to control the first sliding rheostat (21), the second sliding rheostat (22), and the third sliding rheostat (23), respectively; the driver (31) is electrically connected to the controller (32); the first motor (51) is electrically connected to the driver (31) through the first control switch (41); the second motor (52) is electrically connected to the driver (31) through the second control switch (42); and the third motor (53) is electrically connected to the driver (31) through the third control switch (43).
2. The economical intelligent test load according to claim 1, characterized in that: The first sliding rheostat (21), the second sliding rheostat (22), and the third sliding rheostat (23) each include a fixed base (6), a ceramic cylinder (61) disposed at the bottom of the fixed base (6), a screw (62) rotatably disposed at the top of the fixed base (6), a sliding seat (63) sleeved outside the screw (62), and a sliding plate (64) disposed on the sliding seat (63); the sliding plate (64) abuts against the outer wall of the ceramic cylinder (61); The first motor (51) is connected to the screw (62) of the first sliding rheostat (21); the second motor (52) is connected to the screw (62) of the second sliding rheostat (22); and the third motor (53) is connected to the screw (62) of the third sliding rheostat (23).
3. The economical intelligent test load according to claim 2, characterized in that: The fixed base (6) is provided with a guide rail (65); the guide rail (65) is slidably provided with a guide block (66); the guide block (66) is connected to the sliding base (63); the guide rail (65), the screw (62) and the ceramic cylinder (61) are arranged in parallel.
4. The economical intelligent test load according to claim 3, characterized in that: One end of the guide rail (65) is provided with a first limit switch (71); the other end of the guide rail (65) is provided with a second limit switch (72); the first limit switch (71) and the second limit switch (72) are respectively used to abut against the sliding seat (63).
5. The economical intelligent test load according to claim 2, characterized in that: The housing (1) is equipped with a transmitter (33); the ceramic cylinder (61) of the first sliding rheostat (21), the ceramic cylinder (61) of the second sliding rheostat (22) and the ceramic cylinder (61) of the third sliding rheostat (23) are electrically connected to the transmitter (33); the transmitter (33) is electrically connected to the controller (32).
6. The economical intelligent test load according to claim 5, characterized in that: The housing (1) is equipped with a bracket (8); the driver (31), controller (32), first control switch (41), second control switch (42), third control switch (43) and transmitter (33) are located on the top of the bracket (8); The first motor (51), the second motor (52), the third motor (53), the first sliding rheostat (21), the second sliding rheostat (22), and the third sliding rheostat (23) are located at the bottom of the bracket (8).
7. The economical intelligent test load according to claim 1, characterized in that: The side of the housing (1) is provided with multiple heat dissipation holes (11).
8. The economical intelligent test load according to claim 1, characterized in that: The first motor (51), the second motor (52) and the third motor (53) are all stepper motors.