Winding resistor

Abstract

The utility model discloses a winding resistor, which relates to the technical field of resistors and comprises a fixed shell, one side of the outer surface of the fixed shell is fixedly connected with one side of a motor, the output end of the motor is fixedly connected with the lower surface of a transmission shaft, and one side of the outer circumferential surface of the transmission shaft is fixedly connected with one side of the inner surface of a transmission mechanism. One side of the outer surface of the transmission mechanism is fixedly connected with one end of the push rod, the other side of the outer surface of the push rod is fixedly connected with one side of the outer surface of the moving plate, one side of the inner surface of the moving plate is fixedly connected with one side of the outer surface of the telescopic plate, and the other side of the outer surface of the telescopic plate is slidably connected with one side of the inner surface of the fixing shell. The motor drives the transmission mechanism to rotate, the transmission mechanism drives the push rod to move, and the push rod drives the telescopic plate to horizontally slide on the inner surface of the fixed shell through the moving plate, so that the effects of driving the electronic shell to open according to the maintenance requirement of the winding resistor and improving the maintenance efficiency of the resistor are achieved, and the problem of low maintenance efficiency of the traditional winding resistor is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of resistors, in particular to a wire-wound resistor. Background Art

[0002] Wirewound resistor is a current limiting component and is widely used in daily life. When the wirewound resistor is connected to the circuit, it can limit the current passing through the branch it is connected to. Wirewound resistor is one of the most widely used components in electronic circuits. When producing resistors, a capping machine is needed to cap both ends of the resistor.

[0003] After searching, a Chinese patent with publication number CN216719631U discloses a wire-wound resistor, which forms a coating cavity in the wire-wound resistor and fills the coating cavity with moisture-proof filler, which helps to improve the waterproof and moisture-proof performance of the wire-wound resistor; at the same time, a ring foot is provided at the bottom of the wire-wound resistor to form a groove, and thermal conductive silicone grease is filled in the groove to make the wire-wound resistor have excellent heat dissipation effect on the substrate.

[0004] Although the above scheme can have an excellent heat dissipation effect, the wire-wound resistor in the above patent does not have the function of quickly disassembling and repairing the resistor. When the resistor needs to be repaired after a long period of operation, the cap is removed for repair, but after the cap is removed, a capping machine is required to re-cap the resistor, which is very troublesome. For this reason, we provide a wire-wound resistor to solve the above problems. Utility Model Content

[0005] The utility model aims to solve the problem that a wire-wound resistor cannot be quickly disassembled and repaired, and provides a wire-wound resistor.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a wire-wound resistor, comprising a fixed shell, one side of the outer surface of the fixed shell is fixedly connected to one side of the motor, the output end of the motor is fixedly connected to a lower surface of a transmission shaft, one side of an outer circumferential surface of the transmission shaft is fixedly connected to one side of an inner surface of a transmission mechanism, one side of the outer surface of the transmission mechanism is fixedly connected to one end of a push rod, the other side of the outer surface of the push rod is fixedly connected to one side of an outer surface of a moving plate, one side of the inner surface of the moving plate is fixedly connected to one side of the outer surface of a telescopic plate, the other side of the outer surface of the telescopic plate is slidably connected to one side of the inner surface of the fixed shell, and the transmission mechanism comprises a flat driving wheel and a flat driven wheel.

[0007] The inner surface of the flat driven wheel is fixedly connected to one side of the second outer circumferential surface of the transmission shaft, the other side of the second outer circumferential surface of the transmission shaft is fixedly connected to one side of the inner surface of the transmission rod, the other side of the inner surface of the transmission rod is fixedly connected to one side of the outer circumferential surface of the moving shaft, the other side of the outer circumferential surface of the moving shaft is slidably connected to one side of the outer surface of the connecting rod, one side of the inner surface of the connecting rod is rotatably connected to one side of the inner surface of the limit rod through a rotating shaft, the other side of the inner surface of the limit rod is rotatably connected to one side of the inner surface of the moving rod through a rotating shaft, one side of the outer surface of the moving rod is slidably connected to one side of the inner surface of the limit block, and one side of the outer surface of the limit block is fixedly connected to one side of the inner surface of the fixed shell.

[0008] Furthermore, one side of the outer circumferential surface of the transmission shaft is fixedly connected to one side of the inner surface of the flat driving wheel, one side of the teeth on the outer circumferential surface of the flat driving wheel is meshed with one side of the teeth on the outer circumferential surface of the flat driven wheel, the other side of the teeth on the outer circumferential surface of the flat driven wheel is meshed with one side of the teeth on the outer surface of the gear column, and one end of the gear column is fixedly connected to one end of the push rod, causing the push rod to slide back and forth on the outer surface of the fixed shell.

[0009] Furthermore, the teeth on both sides of the outer circumferential surface of the flat driving wheel are symmetrically arranged, and one side of the teeth on the outer circumferential surface of the flat driving wheel meshes with one side of the teeth on the outer surface of the tooth column, and the flat driving wheel is used to cause the tooth column to slide back and forth through the flat driven wheel.

[0010] Furthermore, one side of the outer surface of the gear column is slidably connected to one side of the inner surface of the slide rod, and one side of the outer surface of the slide rod is fixedly connected to one side of the outer surface of the fixed shell, thereby improving the transmission stability of the gear column.

[0011] Furthermore, one side of the outer circumferential surface of the second transmission shaft is rotatably connected to one side of the inner surface of the support rod, and one side of the outer surface of the support rod is fixedly connected to one side of the inner surface of the fixed shell, so that the second transmission shaft rotates horizontally on the outer surface of the fixed shell.

[0012] Furthermore, one side of the inner surface of the connecting rod is rotatably connected to one side of the inner surface of the fixed block through a rotating shaft, and one side of the outer surface of the fixed block is fixedly connected to one side of the inner surface of the fixed shell, thereby improving the transmission stability of the connecting rod.

[0013] Furthermore, one end of the moving rod is fixedly connected to one end of the spring, and the other end of the spring is fixedly connected to one side of the inner surface of the fixed shell. The diameter of the outer surface of the spring is smaller than the width of the inner surface of the limit block, thereby improving the position stability of the moving rod.

[0014] Compared with the prior art, the wire wound resistor has the following beneficial effects:

[0015] 1. The utility model drives the transmission mechanism to rotate through the motor, the transmission mechanism drives the push rod to move, and the push rod drives the telescopic plate to slide horizontally on the inner surface of the fixed shell through the moving plate, so as to achieve the effect of driving the electronic shell to open according to the maintenance needs of the wound resistor, improve the maintenance efficiency of the resistor, and solve the problem of low maintenance efficiency of traditional wound resistors.

[0016] 2. The utility model drives the second transmission shaft to rotate through the flat driven wheel, and the second transmission shaft drives the connecting rod to rotate through the transmission rod. The spring and the moving rod are used to improve the stability of the limit rod position. The connecting rod drives the limit rod to move to fix the position of the resistor in operation, thereby avoiding the position of the resistor shaking during operation and improving the safety of the wound resistor. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0018] Figure 2 This is a sectional view of the three-dimensional structure of the fixed shell of the utility model;

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the transmission mechanism of the utility model;

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure of the limit rod of the utility model.

[0021] In the figure:

[0022] 1. Fixed housing; 2. Motor; 3. Transmission shaft 1;

[0023] 4. Transmission mechanism; 41. Flat driving wheel; 42. Flat driven wheel; 43. Gear column;

[0024] 5. Push rod; 6. Moving plate; 7. Telescopic plate; 8. Sliding rod; 9. Transmission shaft 2; 10. Transmission rod; 11. Moving shaft; 12. Connecting rod; 13. Limit rod; 14. Moving rod; 15. Limit block; 16. Support rod; 17. Fixed block; 18. Spring. DETAILED DESCRIPTION

[0025] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0026] See also Figure 3A wire-wound resistor comprises a fixed shell 1, one side of the outer surface of the fixed shell 1 is fixedly connected to one side of a motor 2, the fixed shell 1 is used to improve the transmission stability of the motor 2, the motor 2 can be used as a power input source, and its model is not specifically limited in this application, and it can also be replaced by other power drive structures, the output end of the motor 2 is fixedly connected to the lower surface of a transmission shaft 3, one side of the outer circumferential surface of the transmission shaft 3 is fixedly connected to one side of the inner surface of a flat driving wheel 41, the teeth on both sides of the outer circumferential surface of the flat driving wheel 41 are symmetrically arranged, and the flat driving wheel One side of the teeth on the outer circumferential surface of 41 meshes with one side of the teeth on the outer surface of the tooth column 43. The special shape of the flat driving wheel 41 is used to cause the tooth column 43 to slide back and forth through the flat driven wheel 42. One side of the teeth on the outer circumferential surface of the flat driving wheel 41 meshes with one side of the teeth on the outer circumferential surface of the flat driven wheel 42. The flat driven wheel 42 is used to cause the transmission shaft 2 9 to rotate horizontally on the outer surface of the fixed shell 1. The other side of the teeth on the outer circumferential surface of the flat driven wheel 42 meshes with one side of the teeth on the outer surface of the tooth column 43. One side of the outer surface of the tooth column 43 is slidably connected to one side of the inner surface of the slide rod 8.

[0027] One side of the outer surface of the slide rod 8 is fixedly connected to one side of the outer surface of the fixed shell 1, and the slide rod 8 is used to prevent the gear column 43 from deflecting when sliding, thereby improving the transmission stability effect of the gear column 43, one end of the gear column 43 is fixedly connected to one end of the push rod 5, so that the push rod 5 is prompted to slide back and forth on the outer surface of the fixed shell 1, thereby improving the resistance maintenance efficiency, one side of the outer circumferential surface of the transmission shaft 3 is fixedly connected to one side of the inner surface of the transmission mechanism 4, one side of the outer surface of the transmission mechanism 4 is fixedly connected to one end of the push rod 5, the other side of the outer surface of the push rod 5 is fixedly connected to one side of the outer surface of the moving plate 6, one side of the inner surface of the moving plate 6 is fixedly connected to one side of the outer surface of the telescopic plate 7, the telescopic plate 7 is used to prompt the moving plate 6 to slide horizontally on one side of the outer surface of the fixed shell 1, the telescopic plate 7 is used to improve the sliding stability effect of the moving plate 6, the other side of the outer surface of the telescopic plate 7 is slidably connected to one side of the inner surface of the fixed shell 1, and the transmission mechanism 4 includes a flat driving wheel 41 and a flat driven wheel 42.

[0028] See also Figure 4 The inner surface of the flat driven wheel 42 is fixedly connected to one side of the outer circumferential surface of the transmission shaft 29, one side of the outer circumferential surface of the transmission shaft 29 is rotatably connected to one side of the inner surface of the support rod 16, one side of the outer surface of the support rod 16 is fixedly connected to one side of the inner surface of the fixed shell 1, and the support rod 16 is used to prevent the transmission shaft 29 from deviating during rotation, so that the transmission shaft 29 is horizontally rotated on the outer surface of the fixed shell 1, the other side of the outer circumferential surface of the transmission shaft 29 is fixedly connected to one side of the inner surface of the transmission rod 10, and the fixed shell 1 is used to improve the rotation stability of the transmission rod 10, the other side of the inner surface of the transmission rod 10 is fixedly connected to one side of the outer circumferential surface of the moving shaft 11, and the moving shaft 11 is used to improve the stability of the connecting rod 12 when it moves, the other side of the outer circumferential surface of the moving shaft 11 is slidably connected to one side of the outer surface of the connecting rod 12, and the connecting rod 12 and the limit rod 13 are used to improve the fixing effect during resistance operation, and one side of the inner surface of the connecting rod 12 is rotatably connected to one side of the inner surface of the fixed block 17 through a rotating shaft.

[0029] One side of the outer surface of the fixed block 17 is fixedly connected to one side of the inner surface of the fixed shell 1. The fixed block 17 is used to prevent the connecting rod 12 from deflecting during rotation, thereby improving the transmission stability of the connecting rod 12. One side of the inner surface of the connecting rod 12 is rotationally connected to one side of the inner surface of the limit rod 13 through a rotating shaft, and the other side of the inner surface of the limit rod 13 is rotationally connected to one side of the inner surface of the moving rod 14 through a rotating shaft. One end of the moving rod 14 is fixedly connected to one end of a spring 18, and the other end of the spring 18 is fixedly connected to one side of the inner surface of the fixed shell 1. The diameter of the outer surface of the spring 18 is smaller than the width of the inner surface of the limit block 15. The spring 18 is used to reset the position of the moving rod 14, thereby improving the position stability of the moving rod 14. One side of the outer surface of the moving rod 14 is slidably connected to one side of the inner surface of the limit block 15. The limit block 15 is used to improve the sliding stability of the moving rod 14. One side of the outer surface of the limit block 15 is fixedly connected to one side of the inner surface of the fixed shell 1.

[0030] Working principle: When repairing the wound resistor, the motor 2 is used to drive the flat driving wheel 41 through the transmission shaft 1 3 to rotate, and the flat driving wheel 41 drives the tooth column 43 to slide horizontally on the outer surface of the fixed shell 1 through the flat driven wheel 42. The special shape of the flat driving wheel 41 is used to mesh with the tooth column 43 to drive the push rod 5 to slide back and forth on the outer surface of the fixed shell 1. The push rod 5 drives the telescopic plate 7 to slide horizontally on the inner surface of the fixed shell 1 through the moving plate 6, so that one side of the resistor shell is opened to repair the interior. When working on the wound resistor, the flat driven wheel 42 is used to drive the transmission rod 10 to rotate through the transmission shaft 2 9. The transmission rod 10 drives the connecting rod 12 to rotate around the fixed block 17 through the moving shaft 11. The connecting rod 12 drives the limit rod 13 to move through the rotating shaft. The limit rod 13 drives the moving rod 14 to slide horizontally on the inner surface of the limit block 15 through the rotating shaft. The position of the moving rod 14 is limited by the spring 18, so as to improve the position stability effect during the resistor operation and facilitate the subsequent maintenance of the wound resistor.

[0031] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A wire wound resistor, comprising a fixed housing (1), characterized in that: One side of the outer surface of the fixed shell (1) is fixedly connected to one side of the motor (2), the output end of the motor (2) is fixedly connected to the lower surface of the transmission shaft (3), one side of the outer circumferential surface of the transmission shaft (3) is fixedly connected to one side of the inner surface of the transmission mechanism (4), one side of the outer surface of the transmission mechanism (4) is fixedly connected to one end of the push rod (5), the other side of the outer surface of the push rod (5) is fixedly connected to one side of the outer surface of the movable plate (6), one side of the inner surface of the movable plate (6) is fixedly connected to one side of the outer surface of the telescopic plate (7), the other side of the outer surface of the telescopic plate (7) is slidably connected to one side of the inner surface of the fixed shell (1), and the transmission mechanism (4) comprises a flat driving wheel (41) and a flat driven wheel (42); The inner surface of the flat driven wheel (42) is fixedly connected to one side of the outer circumferential surface of the second transmission shaft (9), the other side of the outer circumferential surface of the second transmission shaft (9) is fixedly connected to one side of the inner surface of the transmission rod (10), the other side of the inner surface of the transmission rod (10) is fixedly connected to one side of the outer circumferential surface of the moving shaft (11), the other side of the outer circumferential surface of the moving shaft (11) is slidably connected to one side of the outer surface of the connecting rod (12), one side of the inner surface of the connecting rod (12) is rotationally connected to one side of the inner surface of the limiting rod (13) through a rotating shaft, the other side of the inner surface of the limiting rod (13) is rotationally connected to one side of the inner surface of the moving rod (14) through a rotating shaft, one side of the outer surface of the moving rod (14) is slidably connected to one side of the inner surface of the limiting block (15), and one side of the outer surface of the limiting block (15) is fixedly connected to one side of the inner surface of the fixed shell (1).

2. A wire wound resistor according to claim 1, characterized in that: One side of the outer circumferential surface of the transmission shaft (3) is fixedly connected to one side of the inner surface of the flat driving wheel (41), one side of the teeth on the outer circumferential surface of the flat driving wheel (41) meshes with one side of the teeth on the outer circumferential surface of the flat driven wheel (42), the other side of the teeth on the outer circumferential surface of the flat driven wheel (42) meshes with one side of the teeth on the outer surface of the tooth column (43), and one end of the tooth column (43) is fixedly connected to one end of the push rod (5).

3. A wire wound resistor according to claim 2, characterized in that: The teeth on both sides of the outer circumferential surface of the flat driving wheel (41) are symmetrically arranged, and one side of the teeth on the outer circumferential surface of the flat driving wheel (41) meshes with one side of the teeth on the outer surface of the tooth column (43).

4. A wire wound resistor according to claim 2, characterized in that: One side of the outer surface of the tooth column (43) is slidably connected to one side of the inner surface of the slide rod (8), and one side of the outer surface of the slide rod (8) is fixedly connected to one side of the outer surface of the fixed shell (1).

5. A wire wound resistor according to claim 1, characterized in that: One side of the outer circumferential surface of the second transmission shaft (9) is rotatably connected to one side of the inner surface of the support rod (16), and one side of the outer surface of the support rod (16) is fixedly connected to one side of the inner surface of the fixed shell (1).

6. A wirewound resistor according to claim 1, characterized in that: One side of the inner surface of the connecting rod (12) is rotatably connected to one side of the inner surface of the fixing block (17) via a rotating shaft, and one side of the outer surface of the fixing block (17) is fixedly connected to one side of the inner surface of the fixing shell (1).

7. A wirewound resistor according to claim 1, characterized in that: One end of the moving rod (14) is fixedly connected to one end of the spring (18), and the other end of the spring (18) is fixedly connected to one side of the inner surface of the fixed shell (1), and the outer surface diameter of the spring (18) is smaller than the inner surface width of the limit block (15).

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