CN215577977U - Leadless winding resistor - Google Patents
Leadless winding resistor Download PDFInfo
- Publication number
- CN215577977U CN215577977U CN202122140622.2U CN202122140622U CN215577977U CN 215577977 U CN215577977 U CN 215577977U CN 202122140622 U CN202122140622 U CN 202122140622U CN 215577977 U CN215577977 U CN 215577977U
- Authority
- CN
- China
- Prior art keywords
- resistor
- winding
- resistance
- iron
- iron cap
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Details Of Resistors (AREA)
Abstract
The utility model discloses a leadless winding resistor, which comprises a resistor rod, a winding, an iron cap and a resistor outer sleeve, wherein the resistor outer sleeve is made of insulating materials and is arranged in a hollow manner, the resistor rod is arranged in the resistor outer sleeve in a penetrating manner, the winding is positioned between the resistor rod and the resistor outer sleeve and wound on the resistor rod, two ends of the resistor outer sleeve are both connected with the iron caps, each iron cap is provided with an outer iron cap and an inner iron cap, the inner iron cap is fixedly arranged on the resistor outer sleeve, the end part of the winding is welded with the inner iron cap to form a welding point, the outer iron cap is an elliptic cylinder and is sleeved on the inner iron cap in a sliding manner, the inner iron cap is arranged in a hollow manner to form a spring assembly cavity, a reset spring is arranged in the spring assembly cavity, one end of the reset spring is abutted against the bottom of the spring assembly cavity, the other end of the reset spring is abutted against the outer iron cap, the limit structure is also used for limiting the outer iron cap to be separated from the inner iron cap, and the height difference is effectively reduced through the elliptic iron cap, and the length of the resistor can be adjusted, so that the resistor is more convenient to assemble and take out.
Description
Technical Field
The utility model relates to the technical field of electrical elements, in particular to a leadless winding resistor.
Background
With the rapid development of electronic technology, resistors are still continuously advancing as an essential component in electronic components. The resistor is generally directly called as a resistor in daily life, the magnitude of the resistance of the resistive element is generally related to temperature, material, length, and also cross-sectional area, and the physical quantity that measures the magnitude of the resistance affected by temperature is the temperature coefficient, which is defined as the percentage of the change in resistance value per 1 ℃ rise in temperature. The main physical characteristic of the resistor is that the electric energy is changed into heat energy, and the resistor can also be called as an energy consumption element, and the electric current generates internal energy through the energy consumption element. The resistor generally plays a role in voltage division and shunt in the circuit.
The metal film resistor is produced by adhering Ni-Cr or similar alloy onto the surface of resistor rod to form film, cutting to regulate resistance, cutting with proper joint, and painting insulating slurry to protect the surface. Because it is a lead wire type resistor, it is convenient for manual installation and maintenance, and can be used in most domestic electric appliances, communication and instruments and meters. Most metal film resistors adopt a winding resistor structure.
The winding resistor is made by winding nickel-chromium wire, manganese copper wire and constantan wire on a resistor rod, and the resistor rod is made of ceramic, plastic, metal coated with an insulating layer and other materials and is in various shapes such as a tube shape, a flat shape and the like. The winding resistor has the characteristics of high resistance precision, high power, low working noise, stability, reliability, high temperature resistance and the like. Most of the existing winding resistors have the following structure: resistance wires are wound on the resistance rods, and pins are led out from the left side and the right side of the resistance rods. And the resistance of above-mentioned structure can only adopt the mode installation of pegging graft, has seted up the jack promptly on the circuit board, and two pins of resistance are followed the jack respectively and are inserted, and after the circuit board passed through wave-soldering, soldering tin can weld the pin in jack department, cuts the pin through cutting the foot machine again. As can be seen from the foregoing, the conventional resistor is very troublesome to produce and process, and has many processes and low production efficiency.
In recent years, a resistor manufacturer designs a patch type winding resistor, and the structure of the winding resistor is as follows: iron caps are additionally arranged on two sides of the resistance rod, the resistance wire is wound on the resistance rod, and two ends of the resistance wire are welded on the iron caps; but has at least the following drawbacks: 1. the height difference exists between the iron cap and the resistance rod, so that the resistor is not easy to be absorbed by a chip mounter; 2. the length of the resistor is not changeable, and the resistor is inconvenient to assemble into the corresponding accommodating groove or take out from the accommodating groove.
Disclosure of Invention
The purpose of the utility model is as follows: in order to overcome the defects of the prior art, the utility model provides the leadless winding resistor, the height difference is effectively reduced through the iron cap with the oval design, and the length of the resistor is adjustable, so that the resistor is more convenient to assemble and take out.
The utility model discloses a leadless winding resistor, which comprises a resistor rod, a winding, an iron cap and a resistor outer sleeve, wherein the resistor outer sleeve is made of an insulating material and is arranged in a hollow manner, the resistor rod penetrates through the resistor outer sleeve, the winding is positioned between the resistor rod and the resistor outer sleeve and is wound on the resistor rod, two ends of the resistor outer sleeve are connected with the iron cap, the iron cap is provided with an outer iron cap and an inner iron cap, the inner iron cap is fixedly arranged on the resistor outer sleeve, and the end part of the winding is welded with the inner iron cap to form a welding spot, and the leadless winding resistor is characterized in that: outer iron hat is equipped with including oval cylinder and slip cap on, and interior iron hat cavity sets up and forms spring assembly chamber, and the spring assembly intracavity is equipped with reset spring, and reset spring one end is contradicted in spring assembly chamber bottom, and the other end is contradicted on outer iron hat, still including being used for restricting the limit structure that outer iron hat breaks away from interior iron hat.
Adopt above-mentioned technical scheme, outer iron cap is oval cylinder, can reduce the difference in height of iron cap and resistance overcoat, the chip mounter of being convenient for absorbs resistance, then outer iron cap can slide relative interior iron cap, make the length of resistance can adjust, when resistance assembly is in the storage tank, reset spring can improve the power that an elasticity resets, make outer iron cap contradict all the time on the inside wall of storage tank, make when it uses more stable, limit structure can prevent outer iron cap and interior iron cap separation, it is all more convenient when making transportation and assembly, the reset spring that can be convenient for in spring assembly chamber installs and deforms.
The utility model further provides that: the limiting structure comprises a sliding block and a sliding groove, wherein the sliding block is arranged on the inner side wall of the outer iron cap, the sliding groove is arranged on the inner iron cap, the sliding block is arranged in a hemispherical mode and is attached to the inner side wall of the sliding groove in a sliding mode, and the sliding block can slide to the end portion of the sliding groove to form limiting.
Adopt above-mentioned further setting again, the slider is the hemisphere and sets up and can reduce frictional force, and it is more convenient when making it slide, and in still being convenient for assemble to the spout, the slider can play the effect of direction with the spout cooperation when outer iron hat slides.
The utility model further provides that: the outer side surface of the resistance rod is provided with a winding groove and a transverse groove, the winding is wound in the winding groove, and the end part of the winding is positioned in the transverse groove and is guided to the inner iron cap by the transverse groove.
Adopt the aforesaid to further set up again, the wire winding groove can prevent that the wire winding from skidding around establishing on the resistance stick, and the wire winding is located the wire winding inslot moreover and makes when its assembles more stable, and the horizontal groove can be convenient for wire winding end and assemble, but also can play the effect of direction.
Drawings
FIG. 1 is a perspective view of the present invention;
FIG. 2 is a side view of the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a schematic view of a resistor bar according to the present invention;
fig. 5 is an enlarged view of part a of bitmap 3.
Detailed Description
The following detailed description of specific embodiments of the utility model is provided in conjunction with the accompanying drawings:
in the description of the present invention, it is to be understood that the terms "upper", "lower", "bottom", "top", "front", "rear", "inner", "outer", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the present invention.
The utility model discloses a leadless winding resistor, which comprises a resistor rod 1, a winding 2, an iron cap 3 and a resistor outer sleeve 4, wherein the resistor outer sleeve 4 is made of insulating materials and is arranged in a hollow way, the resistor rod 1 is arranged in the resistor outer sleeve 4 in a penetrating way, the winding 2 is arranged between the resistor rod 1 and the resistor outer sleeve 4 and is wound on the resistor rod 1, two ends of the resistor outer sleeve 4 are both connected with the iron caps 3, the iron cap 3 is provided with an outer iron cap 31 and an inner iron cap 32, the inner iron cap 32 is fixedly arranged on the resistor outer sleeve 4, the end part of the winding 2 is welded with the inner iron cap 32 to form a welding spot, in the embodiment of the utility model, the outer iron cap 31 is an oval column body and is sleeved on the inner iron cap 32 in a sliding way, the height difference between the iron cap 3 and the resistor outer sleeve 4 can be reduced, a chip mounter can conveniently suck the resistor, then the outer iron cap 31 can slide relative to the inner iron cap 32, so that the length of the resistor can be adjusted, interior iron hat 32 cavity sets up and forms spring assembly chamber 5, be equipped with reset spring 6 in spring assembly chamber 5, 6 one end conflicts in 5 bottoms in spring assembly chamber, the other end conflicts on outer iron hat 31, the resistance assembly is when in the storage tank, reset spring 6 can improve the power that an elasticity resets, make outer iron hat 31 conflict all the time on the inside wall of storage tank, it is more stable when making it use, still including being used for restricting the limit structure that outer iron hat 31 breaks away from interior iron hat, limit structure can prevent outer iron hat 31 and the separation of interior iron hat 32, it is all more convenient when making transportation and assembly, reset spring 6 that can be convenient for in spring assembly chamber 5 installs and deformation.
Limiting structure is including setting up slider 311 and the spout 321 that sets up on interior nut 32 on the outer nut 31 inside wall, slider 311 is the hemisphere and sets up and laminate mutually with the inboard wall of spout 321 in sliding, slider 311 slidable forms spacingly to spout 321 tip, slider 311 is the hemisphere and sets up and can reduce frictional force, it is more convenient when making it slide, and it is still convenient for assemble to spout 321 in, slider 311 and spout 321 cooperation can play the effect of direction when outer nut 31 slides, of course limiting structure can also cooperate through boss and bulge loop and realize spacingly, or realize spacingly through the cooperation of snap ring with the draw-in groove.
The resistance stick is characterized in that a winding groove 11 and a transverse groove 12 are formed in the outer side face of the resistance stick 1, a winding wire 2 is wound in the winding groove 11, the end portion of the winding wire 2 is located in the transverse groove 12 and is guided to an inner iron cap 32 through the transverse groove 12, the winding groove 11 can prevent the winding wire 2 from slipping when being wound on the resistance stick 1, the winding wire 2 is located in the winding groove 11, so that the assembly or the processing of the winding wire can be more stable, the transverse groove 12 can be convenient for the assembly of the end portion of the winding wire 2, the guide positioning effect can be further played, and the welding is convenient.
Claims (3)
1. The utility model provides a leadless wire winding resistor, includes resistance stick, wire winding, iron hat and resistance overcoat, and the resistance overcoat adopts insulating material to constitute to cavity setting, resistance stick wear to locate the resistance overcoat, and the wire winding is located and the duplex winding is established on the resistance stick between resistance stick and the resistance overcoat, and the both ends of resistance overcoat all are connected with the iron hat, the iron hat has outer iron hat and interior iron hat, and interior iron hat is fixed to be set up on the resistance overcoat, and the welding of wire winding tip and interior iron hat forms solder joint, its characterized in that: outer iron hat is equipped with including oval cylinder and slip cap on, and interior iron hat cavity sets up and forms spring assembly chamber, and the spring assembly intracavity is equipped with reset spring, and reset spring one end is contradicted in spring assembly chamber bottom, and the other end is contradicted on outer iron hat, still including being used for restricting the limit structure that outer iron hat breaks away from interior iron hat.
2. The leadless wire-wound resistor of claim 1, wherein: the limiting structure comprises a sliding block and a sliding groove, wherein the sliding block is arranged on the inner side wall of the outer iron cap, the sliding groove is arranged on the inner iron cap, the sliding block is arranged in a hemispherical mode and is attached to the inner side wall of the sliding groove in a sliding mode, and the sliding block can slide to the end portion of the sliding groove to form limiting.
3. A leadless wire-wound resistor according to claim 1 or 2, wherein: the outer side surface of the resistance rod is provided with a winding groove and a transverse groove, the winding is wound in the winding groove, and the end part of the winding is positioned in the transverse groove and is guided to the inner iron cap by the transverse groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122140622.2U CN215577977U (en) | 2021-09-06 | 2021-09-06 | Leadless winding resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122140622.2U CN215577977U (en) | 2021-09-06 | 2021-09-06 | Leadless winding resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215577977U true CN215577977U (en) | 2022-01-18 |
Family
ID=79847791
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122140622.2U Active CN215577977U (en) | 2021-09-06 | 2021-09-06 | Leadless winding resistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215577977U (en) |
-
2021
- 2021-09-06 CN CN202122140622.2U patent/CN215577977U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA2371101C (en) | Miniature fuse of surface-mount type | |
| CN109123804A (en) | Toast smoking set and its heating component | |
| CN209031260U (en) | Toast smoking set and its heating member | |
| CN209463297U (en) | Toast smoking set and its heating component | |
| CN109123805A (en) | Toast smoking set and its Metal Substrate electric heating part | |
| CN215577977U (en) | Leadless winding resistor | |
| CN204334973U (en) | A kind of electronic cigarette calandria | |
| CN110839965A (en) | Electron cigarette heating element | |
| CN105261431A (en) | Manufacturing method for radial glass packaged thermistor, and thermistor | |
| CN215815431U (en) | Leadless winding resistor | |
| CN108971686A (en) | A kind of tin ball-type quantifies electric iron | |
| CN215577979U (en) | Leadless winding resistor | |
| CN109123806A (en) | Toast smoking set | |
| CN208834909U (en) | A kind of molding Surface Mount ceramic capacitor with non-slip groove | |
| CN201171032Y (en) | Resistance microfuse | |
| CN209090057U (en) | Toast smoking set | |
| CN208922800U (en) | A kind of vertical Surface Mounting Technology component structure | |
| CN210052630U (en) | Pin-free surface-mounted transformer | |
| CN219053162U (en) | Adjustable soldering iron head for soldering tin | |
| CN203288373U (en) | High-power chip resistor | |
| CN219225988U (en) | Chip NTC resistor | |
| CN216391537U (en) | Novel plug-in components light source violently paste structure | |
| CN207026674U (en) | A kind of Portable electric soldering iron | |
| CN207681714U (en) | A kind of high-accuracy PCB welder | |
| CN211458862U (en) | Electron cigarette heating element |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |