Wire-off-preventing wire-wound resistor

Abstract

The utility model discloses a wire-off-preventing wire-wound resistor, relates to the field of wire-wound resistors, and solves the problems that wire-off prevention is carried out only through one limiting plate in an existing wire-wound resistor, and a resistance wire far away from the position of the limiting plate is still easy to fall off in the using process, and the wire-off-preventing wire-wound resistor comprises a resistor body, a resistance wire is wound on the side wall of the resistor body, and an anti-falling component is arranged at one end of the resistor body; the anti-falling assembly comprises a threaded rod I and a moving block, the threaded rod I is connected to one end of the resistor body through a bearing, and the moving block is connected to the side wall of the threaded rod I through threads. Compared with the prior art, the resistance wire can be well protected, the situation that the resistance wire falls off in the use process is prevented, the situation that normal use is affected by falling off is further reduced, the fixing effect is better by fixing the three edges, prone to falling off, of the resistance wire, the service life of the resistance wire is also helped, and the use experience is better.

Description

Technical Field

[0001] The utility model relates to the technical field of wire-wound resistors, and particularly relates to a wire-wound resistor with anti-disconnection function. Background Art

[0002] A wire-wound resistor is an electronic component widely used in electronic devices. Its main function is to limit the magnitude of current, thereby protecting the circuit and the device. The working principle of a wire-wound resistor is to wind a certain length of resistance wire inside the resistor. When current passes through the resistance wire, it will be hindered by the resistance, thereby reducing the magnitude of the current. The resistance value of a wire-wound resistor can be adjusted by changing the length, cross-sectional area, and material of the resistance wire. Generally speaking, the longer the length of the resistance wire, the larger the resistance value; the smaller the cross-sectional area, the larger the resistance value; and the material of the resistance wire also affects the magnitude of the resistance value. Therefore, wire-wound resistors have flexibility and adjustable properties and can be customized according to different circuit requirements.

[0003] The "wire-wound resistor with anti-disconnection function" disclosed in the patent publication number "CN219123038U", the anti-disconnection device includes a sliding limit plate, which is slidably connected to the surface of the skeleton. An extension plate is fixedly installed on the surface of the fixed limit plate. A chute is opened on the surface of the extension plate. A U-shaped plate is slidably connected inside the chute. A vertical groove is opened on the side of the U-shaped plate close to the chute. A sliding plate is slidably connected inside the vertical groove. A limit rod is fixedly installed on the surface of the sliding plate. A plurality of limit holes are evenly opened on the surface of the extension plate. One end of the limit rod away from the sliding plate is located inside the limit hole. A support plate is fixedly installed on the side of the U-shaped plate close to the chute. A first spring is fixedly installed between the support plate and the sliding plate. The utility model solves the problem that the resistance strip of the existing wire-wound resistor is prone to detachment from the side groove due to vibration during use, which may lead to short circuit between different segments of the resistance strip and damage the entire resistor, and the stability is low.

[0004] In view of the above related problems, the existing wire-wound resistor only uses a limit plate to prevent wire disconnection. During use, the resistance wire at a position far from the limit plate is still prone to falling off, and it is not convenient to quickly disassemble the limit plate, which will be very troublesome when winding the wire.

[0005] Therefore, the utility model provides a wire-wound resistor with anti-disconnection function to solve the above problems. Summary of the Utility Model

[0006] (1) Technical Problems to be Solved

[0007] In view of the problems existing in the above-mentioned prior art, the present utility model provides a wire-wound resistor with anti-disconnection function, which solves the problem that the existing wire-wound resistor only uses a limiting plate to prevent wire disconnection, and the resistance wire at a position far from the limiting plate is still prone to falling off during use.

[0008] (II) Technical Solution

[0009] To achieve the above object, the present utility model is realized through the following technical solutions: A wire-wound resistor with anti-disconnection function, including a resistor body, a resistance wire is wound on the side wall of the resistor body, and an anti-falling component is provided at one end of the resistor body; The anti-falling component includes a first threaded rod and a moving block. The first threaded rod is connected to one end of the resistor body through a bearing. The moving block is threadedly connected to the side wall of the first threaded rod. A U-shaped frame I is fixedly connected to the outer side wall of the moving block. A connecting rod is hinged to the inner side wall of the U-shaped frame I. A fixed frame I is fixedly connected to the side wall of the resistor body. A sliding plate is slidably connected to the inner side wall of the fixed frame I. A U-shaped frame II is fixedly installed on one side of the sliding plate. The connecting rod is hinged to the U-shaped frame II. A pressing rod is clamped on one side of the sliding plate.

[0010] As a preferred solution of the wire-wound resistor with anti-disconnection function of the present utility model, an assembly and disassembly component is provided on the top of the resistor body. The assembly and disassembly component includes a fixed frame II and a movable frame. The fixed frame II is fixedly connected to the side wall of the resistor body. The movable frame is slidably connected to the inner side wall of the fixed frame II. The pressing rod is slidably connected to the movable frame.

[0011] By adopting the above technical solution, the up and down movement of the pressing rod can be made more stable.

[0012] As a preferred solution of the wire-wound resistor with anti-disconnection function of the present utility model, the assembly and disassembly component further includes a second threaded rod and a threaded hole. The second threaded rod is threadedly connected to the top of the movable frame. The threaded hole is opened on the top of the pressing rod. The second threaded rod is connected to the threaded hole.

[0013] By adopting the above technical solution, rapid assembly and disassembly can be carried out, so as to facilitate rapid wire winding.

[0014] As a preferred solution of the wire-wound resistor with anti-disconnection function of the present utility model, the assembly and disassembly component further includes a second knob. The second knob is fixedly connected to the top end of the second threaded rod.

[0015] By adopting the above technical solution, it is convenient to rotate the second knob.

[0016] As a preferred embodiment of the wire-wound resistor with anti-disconnection of the present utility model, wherein, the disassembly and assembly component further includes a second slider, the second sliders are respectively fixedly connected to both sides of the movable frame, and the movable frame is slidably clamped with the second fixing frame through the second slider.

[0017] By adopting the above technical solution, quick installation and disassembly can be carried out, and the disassembly and assembly are simple and convenient.

[0018] As a preferred embodiment of the wire-wound resistor with anti-disconnection of the present utility model, one end of the first threaded rod is fixedly connected with a first knob, and the first knob is welded to the first threaded rod.

[0019] By adopting the above technical solution, it is convenient to rotate the first threaded rod.

[0020] As a preferred embodiment of the wire-wound resistor with anti-disconnection of the present utility model, the anti-dropping component further includes a first slider, the first sliders are respectively fixedly connected to both sides of the sliding plate, and the first slider is slidably connected with the first fixing frame.

[0021] By adopting the above technical solution, the sliding plate can move more stably.

[0022] (III) Beneficial effects

[0023] The present utility model provides a wire-wound resistor with anti-disconnection, which has the following beneficial effects:

[0024] 1. For the wire-wound resistor with anti-disconnection, through the anti-dropping component, a good protection effect can be achieved on the resistance wire to prevent it from falling off during use, and the situation where the falling off affects the normal use is reduced. Moreover, fixing the three edges of the resistance wire that are prone to falling off will make the fixing effect better, which is helpful for its service life and the use experience will also be better.

[0025] 2. For the wire-wound resistor with anti-disconnection, through the disassembly and assembly component, the pressure rod can be quickly disassembled, and there will be no interference during the wire winding process of the resistor, making the wire winding of the resistor body more convenient, reducing the time required for wire winding, and reducing unnecessary workload, so that the use effect will be better and the use experience is guaranteed. Description of the drawings

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for description in the embodiments. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0027] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0028] Figure 2 is the Figure 1 enlarged view of the structure at position A in the present utility model.

[0029] Figure 3 It is a side view of the overall structure of the present utility model.

[0030] Figure 4 is the Figure 3 enlarged view of the structure at position B in the present utility model.

[0031] In the figure, 1 is the resistor body; 2 is the resistance wire; 3 is the anti-detachment component; 31 is the first threaded rod; 32 is the moving block; 33 is the first U-shaped frame; 34 is the connecting rod; 35 is the first fixing frame; 36 is the sliding plate; 37 is the second U-shaped frame; 38 is the pressing rod; 39 is the first slider; 4 is the first knob; 5 is the disassembly and assembly component; 51 is the second fixing frame; 52 is the movable frame; 53 is the second threaded rod; 54 is the threaded hole; 55 is the second knob; 56 is the second slider. Specific Embodiments

[0032] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0033] Embodiment 1

[0034] Referring to Figure 1 and Figure 2 , this is the first embodiment of the present utility model. This embodiment provides a wire-wound resistor with anti-wire-detachment, including a resistor body 1, a resistance wire 2 wound around the side wall of the resistor body 1, and an anti-detachment component 3 provided at one end of the resistor body 1; the anti-detachment component 3 includes a first threaded rod 31 and a moving block 32. The first threaded rod 31 is connected to one end of the resistor body 1 through a bearing, the moving block 32 is threadedly connected to the side wall of the first threaded rod 31, the outer side wall of the moving block 32 is fixedly connected to a first U-shaped frame 33, the inner side wall of the first U-shaped frame 33 is hinged to a connecting rod 34, the side wall of the resistor body 1 is fixedly connected to a first fixing frame 35, the inner side wall of the first fixing frame 35 is slidably connected to a sliding plate 36, one side of the sliding plate 36 is fixedly installed with a second U-shaped frame 37, the connecting rod 34 is hinged to the second U-shaped frame 37, and one side of the sliding plate 36 is clamped with a pressing rod 38.

[0035] Specifically, one end of the first threaded rod 31 is fixedly connected to a first knob 4, the first knob 4 is welded to the first threaded rod 31, the anti-detachment component 3 further includes a first slider 39, the first sliders 39 are respectively fixedly connected to both sides of the sliding plate 36, and the first sliders 39 are slidably connected to the first fixing frame 35.

[0036] Further, first wind the resistance wire 2 around the surface of the resistor body 1, then snap the pressure rod 38 into the inside of the slide plate 36, and then turning the second knob 55 can drive the second threaded rod 53 to rotate, so that the second threaded rod 53 can be screwed together with the threaded hole 54, enabling the movable frame 52 to slide synchronously with the pressure rod 38. During the sliding process of the movable frame 52, it will slide through the second slider 56 inside the second fixing frame 51, making its movement more stable. Moreover, the installation of the pressure rod 38 is simple and convenient, which will not affect the normal winding work and has a good limiting effect on the resistance wire 2.

[0037] Embodiment 2

[0038] Refer to Figure 3 With Figure 4 , this is the second embodiment of the present utility model. Based on the previous embodiment, a disassembly and assembly component 5 is provided at the top of the resistor body 1. The disassembly and assembly component 5 includes a second fixing frame 51 and a movable frame 52. The second fixing frame 51 is fixedly connected to the side wall of the resistor body 1, the movable frame 52 is slidably connected to the inner side wall of the second fixing frame 51, and the pressure rod 38 is slidably connected to the movable frame 52.

[0039] Specifically, the disassembly and assembly component 5 further includes a second threaded rod 53 and a threaded hole 54. The second threaded rod 53 is threadedly connected to the top of the movable frame 52, the threaded hole 54 is opened at the top of the pressure rod 38, and the second threaded rod 53 is connected to the threaded hole 54. The disassembly and assembly component 5 further includes a second knob 55, the second knob 55 is fixedly connected to the top end of the second threaded rod 53. The disassembly and assembly component 5 further includes a second slider 56, the second sliders 56 are respectively fixedly connected to both sides of the movable frame 52, and the movable frame 52 is slidably clamped to the second fixing frame 51 through the second sliders 56.

[0040] Further, then turning the first knob 4 can drive the first threaded rod 31 to rotate, so that the first threaded rod 31 can drive the moving block 32 to rotate, so that the moving block 32 can drive the connecting rod 34 to move through the first U-shaped frame 33, so that the slide plate 36 can slide through the first slider 39 inside the first fixing frame 35, so that the pressure rod 38 can limit the resistance wire 2 to prevent the resistance wire 2 from getting out of line, further reducing the inconvenience of maintenance after the wire gets out of line, and the use effect will also increase accordingly.

[0041] Working principle: First wind the resistance wire 2 around the surface of the resistor body 1, then snap the pressure rod 38 into the inside of the slide plate 36, and then turning the second knob 55 can drive the second threaded rod 53 to rotate, so that the second threaded rod 53 can be screwed together with the threaded hole 54, enabling the movable frame 52 to slide synchronously with the pressure rod 38. During the sliding process of the movable frame 52, it will slide through the second slider 56 inside the second fixing frame 51.

[0042] Then, rotating the first knob 4 can drive the first threaded rod 31 to rotate, so that the first threaded rod 31 can drive the moving block 32 to rotate, so that the moving block 32 can drive the connecting rod 34 to move through the first U-shaped frame 33, so that the sliding plate 36 can slide inside the first fixing frame 35 through the first slider 39, so that the pressing rod 38 can limit the resistance wire 2 to prevent the resistance wire 2 from getting off the line.

[0043] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations.

Claims

1. A wire-wound resistor that prevents wire disconnection, comprising a resistor body (1), characterized in that: A resistance wire (2) is wound around the side wall of the resistor body (1), and an anti-detachment assembly (3) is provided at one end of the resistor body (1); The anti-detachment assembly (3) includes a first threaded rod (31) and a moving block (32). The first threaded rod (31) is connected to one end of the resistor body (1) through a bearing. The moving block (32) is threadedly connected to the side wall of the first threaded rod (31). A first U-shaped frame (33) is fixedly connected to the outer side wall of the moving block (32). A connecting rod (34) is hinged to the inner side wall of the first U-shaped frame (33). A first fixing frame (35) is fixedly connected to the side wall of the resistor body (1). A sliding plate (36) is slidably connected to the inner side wall of the first fixing frame (35). A second U-shaped frame (37) is fixedly installed on one side of the sliding plate (36). The connecting rod (34) is hinged to the second U-shaped frame (37). A pressing rod (38) is clamped on one side of the sliding plate (36).

2. The wire-wound resistor for preventing wire disconnection according to claim 1, characterized in that: A disassembly and assembly assembly (5) is provided on the top of the resistor body (1). The disassembly and assembly assembly (5) includes a second fixing frame (51) and a movable frame (52). The second fixing frame (51) is fixedly connected to the side wall of the resistor body (1). The movable frame (52) is slidably connected to the inner side wall of the second fixing frame (51). The pressing rod (38) is slidably connected to the movable frame (52).

3. The wire-wound resistor for preventing wire disconnection according to claim 2, wherein: The disassembly and assembly assembly (5) further includes a second threaded rod (53) and a threaded hole (54). The second threaded rod (53) is threadedly connected to the top of the movable frame (52). The threaded hole (54) is opened at the top of the pressing rod (38). The second threaded rod (53) is connected to the threaded hole (54).

4. A wire-wound resistor for preventing wire disconnection according to claim 3, characterized in that: The disassembly and assembly assembly (5) further includes a second knob (55). The second knob (55) is fixedly connected to the top end of the second threaded rod (53).

5. The wire-wound resistor for preventing wire disconnection according to claim 4, wherein: The disassembly and assembly assembly (5) further includes second sliders (56). The second sliders (56) are respectively fixedly connected to both sides of the movable frame (52). The movable frame (52) is slidably clamped to the second fixing frame (51) through the second sliders (56).

6. The wire-wound resistor for preventing wire disconnection according to claim 1, wherein: One end of the first threaded rod (31) is fixedly connected to a first knob (4). The first knob (4) is welded to the first threaded rod (31).

7. An anti-offline wirewound resistor according to claim 1, characterized in that: The anti-detachment assembly (3) further includes first sliders (39). The first sliders (39) are respectively fixedly connected to both sides of the sliding plate (36). The first sliders (39) are slidably connected to the first fixing frame (35).

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