CN209785673U - Resin packaged high-voltage ceramic resistor - Google Patents
Resin packaged high-voltage ceramic resistor Download PDFInfo
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- CN209785673U CN209785673U CN201920394669.1U CN201920394669U CN209785673U CN 209785673 U CN209785673 U CN 209785673U CN 201920394669 U CN201920394669 U CN 201920394669U CN 209785673 U CN209785673 U CN 209785673U
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- ceramic resistor
- pull rod
- voltage ceramic
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Abstract
The utility model provides a resin package high-voltage ceramic resistor includes the base, installs insulating pull rod, cover on the base and establish the resistive element on insulating pull rod, the side parcel of resistive element has insulating resin, insulating resin passes through injection moulding, with resistive element seamless connection, insulating resin's surface has a plurality of full skirt structure, full skirt structure's upper surface is cambered surface and slope downwards, the utility model discloses resin package high-voltage ceramic resistor passes through the insulating resin in the resistive element outside and separates resistive element and external, prevents the erosion of rainwater and dust, and full skirt form's structure has increased the creepage distance of edge again when preventing rainwater and dust accumulation, makes the resistance physical stamina bear higher operating voltage.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to an electrical equipment technical field specifically is a resin package high pressure ceramic resistor.
[ background of the invention ]
The composite ceramic resistor can absorb energy generated by high voltage and large current, so that the composite ceramic resistor is suitable for high-voltage and large-current circuit environments, but can only be used indoors or in cabinets in general. At present, few ceramic resistors capable of being directly mounted outdoors are available, because the resistor body can generate discharge along the edge after being drenched with rain and arc, even short circuit causes the resistor to work abnormally, serious or even causes safety accidents, and more outdoor dust is accumulated to seriously affect the performance of the resistor.
Therefore, the problem to be solved in the field is to provide a ceramic resistor which can meet the outdoor work.
[ Utility model ] content
To the above problem, the utility model discloses resin encapsulation high pressure ceramic resistor passes through the insulating resin in the resistive element outside and separates the resistive element with external, prevents the erosion of rainwater and dust, and the structure of full skirt form has increased the creepage distance of face again when preventing rainwater and dust accumulation, makes the resistance physical stamina bear higher operating voltage.
In order to solve the problem, the utility model discloses resin encapsulation high pressure ceramic resistor includes the base, installs insulating pull rod, cover on the base and establish the resistive element on insulating pull rod, the side parcel of resistive element has insulating resin, insulating resin passes through injection moulding, with resistive element seamless connection, insulating resin's surface has a plurality of full skirt structure, the upper surface of full skirt structure is cambered surface and slope downwards, prevents piling up of rainwater and dust.
Furthermore, the resistor body is formed by connecting a plurality of single resistors sleeved on the insulating pull rod in series.
Furthermore, the two ends of the insulating pull rod are of external thread structures, the middle of the insulating pull rod is a smooth round rod, and the upper end and the lower end of the insulating pull rod are respectively connected with a first locking nut and a second locking nut through the external thread structures.
Furthermore, an electrode plate for connecting a lead is installed below the first locking nut, and a belleville spring is installed between the second locking nut and the base.
Furthermore, an elastic pin is inserted between the first and second lock nuts and the insulating pull rod to prevent the first and second lock nuts from loosening.
Furthermore, the top and the bottom of the resistor body are respectively provided with a circular-ring-shaped sheet-shaped homogenizing aluminum ring, and the homogenizing aluminum rings are sleeved on the insulating pull rod and used for homogenizing the current distribution on the surface of the resistor body when the current is connected and led out.
Further, the base comprises a bottom plate and a sleeve, the sleeve is of a cup-shaped structure with a downward opening, a through hole is formed in the top of the sleeve, the sleeve is sleeved on the insulating pull rod through the through hole, the bottom plate is fixedly connected with the bottom of the sleeve, and a round hole with the diameter being the same as that of the opening of the sleeve is formed in the bottom plate.
Furthermore, the bottom plate is also provided with a binding post, and the binding post comprises a main body arranged on the bottom plate, a screw rod formed by upwards extending from the main body and a nut connected to the screw rod through threads.
Furthermore, the utility model discloses resin encapsulation high pressure ceramic resistor passes through the insulating resin in the resistive element outside and separates the resistive element with external, prevents the erosion of rainwater and dust, and the structure of full skirt form has increased the creepage distance of face again when preventing rainwater and dust accumulation, makes the resistance physical stamina bear higher operating voltage.
[ description of the drawings ]
Fig. 1 is a schematic structural diagram of the resin-encapsulated high-voltage ceramic resistor of the present invention.
Fig. 2 is a partial cross-sectional view of the resin-encapsulated high-voltage ceramic resistor of the present invention.
[ detailed description ] embodiments
The directional terms of the present invention, such as "up", "down", "front", "back", "left", "right", "inner", "outer", "side", etc., are only directions in the drawings, and are only used for explaining and explaining the present invention, but not for limiting the scope of the present invention.
Referring to fig. 1 and fig. 2, the composition structure of the resin-encapsulated high-voltage ceramic resistor of the present invention is shown, which comprises a base 1, an insulating pull rod 2 mounted on the base, and a resistor 3 sleeved on the insulating pull rod. The base 1 comprises a bottom plate 101 and a sleeve 102, the two ends of the insulating pull rod 2 are in an external thread structure, the middle of the insulating pull rod 2 is a smooth round rod, the upper end and the lower end of the insulating pull rod 2 are respectively connected with a first locking nut 5 and a second locking nut 6 through the external thread structure, an electrode plate 7 for connecting a lead is arranged below the first lock nut 5, the electrode plate 7 comprises a bottom plate and an ear plate, the bottom plate is provided with a through hole which is sleeved on the insulating pull rod 2, the lug plate is provided with a lead hole, used for connecting a lead, the resistor body 3 is formed by connecting a plurality of single-chip resistors which are sleeved on the insulating pull rod 2 in series, the top and the bottom of the resistor body 3 are both provided with circular ring sheet-shaped homogenizing aluminum rings 8, and the homogenizing aluminum rings 8 are sleeved on the insulating pull rod 2 and used for homogenizing current distribution on the surface of the resistor body 3 when the current is connected and led out. The sleeve 102 is of a cup-shaped structure with a downward opening, a through hole is formed in the top of the sleeve, the sleeve is sleeved on the insulating pull rod 2 through the through hole and located below the homogenizing aluminum ring, the bottom plate 101 is fixedly connected with the bottom of the sleeve, and a round hole with the diameter being the same as that of the opening of the sleeve is formed in the bottom plate, so that the second locking nut and the belleville spring in the sleeve can be conveniently disassembled and assembled. A belleville spring 9 is arranged between the second lock nut 6 and the top of the sleeve 102, the belleville spring is used for providing continuous elastic force, the resistor body 3 sleeved on the insulating pull rod is tightly pressed, and the first lock nut, the second lock nut and the insulating pull rod 2 are fixed through an elastic pin 10 to prevent the first lock nut, the second lock nut and the insulating pull rod from loosening. The wiring terminal 11 is further mounted on the bottom plate 101, and the wiring terminal 11 comprises a main body mounted on the bottom plate, a screw rod formed by upwards extending from the main body, and a nut connected to the screw rod through threads, a wire is wound on the screw rod, and the wire is tightly pressed through the nut. The side face of the resistor body 3 is wrapped with insulating resin 12, the insulating resin is in seamless connection with the resistor body 3 through injection molding, a plurality of umbrella skirt structures are arranged on the outer surface of the insulating resin, the upper surfaces of the umbrella skirt structures are cambered surfaces and incline downwards, and accumulation of rainwater and dust is prevented. The utility model discloses the insulating resin that resin encapsulation high pressure ceramic resistor passes through the resistive element outside separates the resistive element with external, prevents the erosion of rainwater and dust, and the structure of full skirt form has increased the creepage distance of edge again when preventing rainwater and dust accumulation, makes the resistance physical stamina bear higher operating voltage.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The utility model provides a resin package high-voltage ceramic resistor, its characterized in that, high-voltage ceramic resistor includes base (1), installs insulating pull rod (2), the cover on the insulating pull rod of base and establishes resistive element (3), the side parcel of resistive element (3) has insulating resin (12), insulating resin passes through injection moulding, with resistive element (3) seamless connection, the surface of insulating resin (12) has a plurality of full skirt structure, the upper surface of full skirt structure is cambered surface and slope downwards, prevents piling up of rainwater and dust.
2. The resin-encapsulated high-voltage ceramic resistor as claimed in claim 1, wherein the resistor body (3) is composed of a plurality of series-connected monolithic resistors fitted over the insulating tie rod (2).
3. The resin-encapsulated high-voltage ceramic resistor as claimed in claim 1, wherein the insulating pull rod (2) has an external thread structure at both ends and a smooth round rod in the middle, and the upper and lower ends of the insulating pull rod are respectively connected with a first lock nut (5) and a second lock nut (6) through the external thread structure.
4. The resin-encapsulated high-voltage ceramic resistor as claimed in claim 3, wherein an electrode plate (7) for connecting a lead is mounted below the first lock nut (5), and a belleville spring (9) is mounted between the second lock nut (6) and the base (1).
5. The resin-encapsulated high-voltage ceramic resistor as claimed in claim 3, wherein an elastic pin (10) is inserted between the first and second lock nuts and the insulating tie rod (2) to prevent the first and second lock nuts from loosening.
6. The resin-encapsulated high-voltage ceramic resistor as claimed in claim 1, wherein the top and bottom of the resistor body (3) are provided with ring-shaped sheet-shaped aluminum homogenizing rings (8), and the aluminum homogenizing rings (8) are sleeved on the insulating pull rod (2) and are used for homogenizing the current distribution on the surface of the resistor body when the current is introduced and extracted.
7. The resin-encapsulated high-voltage ceramic resistor as claimed in claim 1, wherein the base (1) comprises a bottom plate (101) and a sleeve (102), the sleeve is of a downward-opening cup-shaped structure, the top of the sleeve is provided with a through hole, the sleeve is sleeved on the insulating pull rod (2) through the through hole, the bottom plate is fixedly connected with the bottom of the sleeve, and the bottom plate is provided with a circular hole with the diameter the same as that of the opening of the sleeve.
8. The resin-encapsulated high-voltage ceramic resistor as claimed in claim 1, wherein the base (1) comprises a base plate (101), and the base plate (101) is provided with a terminal (11) comprising a main body mounted on the base plate, a screw rod formed by extending upward from the main body, and a nut screwed on the screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920394669.1U CN209785673U (en) | 2019-03-27 | 2019-03-27 | Resin packaged high-voltage ceramic resistor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920394669.1U CN209785673U (en) | 2019-03-27 | 2019-03-27 | Resin packaged high-voltage ceramic resistor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209785673U true CN209785673U (en) | 2019-12-13 |
Family
ID=68800063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920394669.1U Active CN209785673U (en) | 2019-03-27 | 2019-03-27 | Resin packaged high-voltage ceramic resistor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209785673U (en) |
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2019
- 2019-03-27 CN CN201920394669.1U patent/CN209785673U/en active Active
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