CN210692235U

CN210692235U - Porcelain shell type voltage-sharing resistor

Info

Publication number: CN210692235U
Application number: CN201921870620.5U
Authority: CN
Inventors: 郁博翰; 郁静; 崔海滨; 陆玲
Original assignee: Anhui Laifu Electronic Technology Co ltd
Current assignee: Anhui Laifu Electronic Technology Co ltd
Priority date: 2019-11-01
Filing date: 2019-11-01
Publication date: 2020-06-05
Anticipated expiration: 2029-11-01

Abstract

The utility model discloses a porcelain shell type voltage-equalizing resistor, which comprises a resistor shell and end covers inserted into two ends of the resistor shell, wherein pins arranged in the resistor shell respectively pass through the end covers, the inner side edge of each end cover is provided with an annular groove, and the inner sides of the end covers are provided with sealing plates, when the resistor is installed, the end covers at two ends are respectively inserted into the resistor shell, the sealing plates are inserted into the resistor shell until a mounting groove is connected with the bottom of a clamping groove and an inner side plate of the groove is connected with the side edge of the clamping groove, a sealing ring is arranged inside the clamping groove to increase the sealing property of the connection between the end covers and the resistor shell, other water or dust can be prevented from entering, the sealing plates are arranged, after the resistor shell is inserted, the outer side of the fixing ring is connected with the side wall of the resistor shell, the sealing, the insertion of the sealing plate into the resistor housing is facilitated.

Description

Porcelain shell type voltage-sharing resistor

Technical Field

The utility model relates to the technical field of resistance, specifically a porcelain shell type voltage-sharing resistor.

Background

The ceramic resistor is widely applied to the fields of power transmission and distribution, electric transmission load, alternating current and direct current driving, pulse power supply, induction heating, pulse network, laser and the like. Under the condition of unchanged resistance value, the larger the energy is, the larger the product volume is, and the higher the temperature rise is, so that the heat dissipation requirement on the ceramic resistor is continuously improved. When the resistor is produced and assembled, the connection between the resistor shell and the end cover is not high in tightness, so that a small amount of water or dust is easy to enter from the connection position, and the use of the resistor is not facilitated.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a porcelain shell type voltage-sharing resistor to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a porcelain shell type voltage-sharing resistor, includes the resistor shell and inserts the end cover at resistor shell both ends, the inside pin that sets up of resistor shell passes the end cover respectively, and the side is provided with the annular groove in the end cover, and the closing plate is installed to the end cover inboard, and the closing plate includes the shutoff ring that solid fixed ring and solid fixed ring are connected, and the outside limit of shutoff ring is provided with the inclined plane to the inboard slope of shutoff ring, and the upper and lower end on inclined plane flushes with the last lower end of shutoff ring respectively, gu fixed ring outside limit forms the mounting groove with the inboard of end cover, the mounting groove inserts the joint groove that sets up on the resistor shell inner wall, and the side is connected with one side in.

Preferably, a metal soaking plate is arranged on the inner wall of the resistor shell, and a spiral sunken part is arranged on the outer wall of the resistor shell.

Preferably, the end cap is matched with the shape of the resistor shell, the diameter of the end cap is larger than that of one end of the resistor shell, and the diameter of the end cap is 2-4mm different from that of the resistor shell.

Preferably, the plugging ring, the inclined plane and the fixing ring are of an integrally formed structure.

Preferably, the width of the concave portion is greater than the width between adjacent concave portions.

Compared with the prior art, the beneficial effects of the utility model are that:

1. when installing the resistor, insert the end cover at both ends respectively in the resistor shell, insert the closing plate in the resistor shell, be connected with the bottom in joint groove until the mounting groove, and when the interior plate of recess is connected with the side in joint groove, be provided with the sealing washer at joint inslot side, increase the leakproofness that end cover and resistor shell are connected, can prevent that other water or dust from getting into, be provided with the closing plate, after inserting the resistor shell, the solid fixed ring outside is connected with the lateral wall of resistor shell, increase the leakproofness of its connection, be provided with the inclined plane to the inboard slope, be favorable to the closing plate to insert in the resistor shell.

2. Be provided with the metal soaking board on the resistor shell inner wall, the inside heat transfer that produces of resistor to the metal soaking board, through the even transmission of metal soaking board with the heat to the resistor shell, because the outside limit of resistor shell is provided with spiral depressed part for the thickness of resistor shell part reduces, is favorable to thermal spread, and simultaneously, the heat radiating area increase of resistor shell surface has accelerated the radiating efficiency.

Drawings

Fig. 1 is a schematic overall structure diagram of the present invention;

fig. 2 is a schematic structural diagram of the end cap of the present invention.

In the figure: 1. a resistor housing; 2. an end cap; 3. a groove; 4. a sealing plate; 41. a fixing ring; 42. a plugging ring; 43. a bevel; 5. perforating; 6. a pin; 7. a clamping groove; 8. a seal ring; 9. a metal vapor chamber; 10. a recessed portion; 11. and (4) mounting the groove.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a porcelain shell type voltage-sharing resistor, includes resistor shell 1 and inserts end cover 2 at 1 both ends of resistor shell, end cover 2 is passed respectively to the pin 6 of 1 inside setting of resistor shell, and the inboard edge of end cover 2 is provided with annular groove 3, and closing plate 4 is installed to 2 inboard ends of end cover, and closing plate 4 includes the shutoff ring 42 that solid fixed ring 41 is connected with solid fixed ring 41, and the outside limit of shutoff ring 42 is provided with the inclined plane 43 to the inboard slope of shutoff ring 42, and the upper and lower end of inclined plane 43 flushes with the upper and lower end of shutoff ring 42 respectively mutually, gu fixed ring 42 outside limit forms mounting groove 11 with the inboard of end cover 2, and mounting groove 11 inserts the joint groove 7 that sets up on 1 inner wall of resistor shell, and the inboard edge of annular groove 3 is connected with one side of joint groove.

Further, a metal vapor chamber 9 is arranged on the inner wall of the resistor casing 1, and a spiral recessed portion 10 is arranged on the outer wall of the resistor casing 1.

Further, the end cover 2 is matched with the shape of the resistor shell 1, the diameter of the end cover 2 is larger than that of one end of the resistor shell 1, and the diameter difference between the end cover 2 and the resistor shell 1 is 2-4 mm.

Furthermore, the plugging ring 42, the inclined surface 43 and the fixing ring 41 are formed integrally.

Further, the width of the concave portion 10 is larger than the width between the adjacent concave portions 10.

The working principle is as follows: when the resistor is installed, the end covers 2 at two ends are respectively inserted into the resistor shell 1, the sealing plate 4 is inserted into the resistor shell 1 until the installation groove 11 is connected with the bottom of the clamping groove 7 and the inner side plate of the groove 3 is connected with the side edge of the clamping groove 7, the sealing ring 8 is arranged at the inner side of the clamping groove 7 to increase the sealing performance of the connection of the end cover 2 and the resistor shell 1 and prevent other water or dust from entering, the sealing plate 4 is arranged, after the resistor shell 1 is inserted, the outer side of the fixing ring 41 is connected with the side wall of the resistor shell 1 to increase the sealing performance of the connection, the inclined surface 43 which inclines to the inner side is arranged to facilitate the insertion of the sealing plate 4 into the resistor,

be provided with metal vapor chamber 9 on resistor shell 1 inner wall, the inside heat transfer that produces of resistor is to metal vapor chamber 9, through metal vapor chamber 9 with the even transmission of heat to resistor shell 1, because resistor shell 1 outside limit is provided with spiral depressed part 10 for the thickness of resistor shell 1 part reduces, is favorable to thermal spread, and simultaneously, the heat radiating area increase of resistor shell 1 surface has accelerated the radiating efficiency.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A porcelain shell type voltage-sharing resistor is characterized in that: the resistor comprises a resistor shell (1) and end covers (2) inserted into two ends of the resistor shell (1), wherein pins (6) arranged in the resistor shell (1) respectively penetrate through the end covers (2), an annular groove (3) is formed in the inner side of each end cover (2), a sealing plate (4) is installed on the inner side of each end cover (2), each sealing plate (4) comprises a fixing ring (41) and a blocking ring (42) connected with the fixing ring (41), an inclined plane (43) inclined towards the inner side of each blocking ring (42) is arranged on the outer side of each blocking ring (42), the upper end and the lower end of each inclined plane (43) are respectively flush with the upper end and the lower end of each blocking ring (42), an installation groove (11) is formed between the outer side of each fixing ring (41) and the inner side of each end cover (2), a clamping groove (7) arranged on the inner wall of the resistor shell (1) in an inserted, and a sealing ring (8) is arranged on the inner wall of the clamping groove (7).

2. A porcelain shell type voltage-sharing resistor as claimed in claim 1, wherein: the inner wall of the resistor shell (1) is provided with a metal soaking plate (9), and the outer wall of the resistor shell (1) is provided with a spiral sunken part (10).

3. A porcelain shell type voltage-sharing resistor as claimed in claim 1, wherein: the end cover (2) is matched with the resistor shell (1) in shape, the diameter of the end cover (2) is larger than that of one end of the resistor shell (1), and the diameter difference between the end cover (2) and the resistor shell (1) is 2-4 mm.

4. A porcelain shell type voltage-sharing resistor as claimed in claim 1, wherein: the plugging ring (42), the inclined plane (43) and the fixing ring (41) are of an integrated structure.

5. A porcelain shell type voltage-sharing resistor as claimed in claim 2, wherein: the width of the recessed portions (10) is greater than the width between adjacent recessed portions (10).