CN210073496U

CN210073496U - Plastic package structure of precision metal foil fixed resistor

Info

Publication number: CN210073496U
Application number: CN201920894512.5U
Authority: CN
Inventors: 赵君; 邱天娇; 薛慢慢
Original assignee: Shandong Hangtian Zhenghe Electronic Co Ltd
Current assignee: Shandong Hangtian Zhenghe Electronic Co Ltd
Priority date: 2019-06-14
Filing date: 2019-06-14
Publication date: 2020-02-14
Anticipated expiration: 2029-06-14

Abstract

The utility model discloses an accurate metal forming fixed resistor plastic envelope structure relates to resistor technical field, including the resistor body, the outside of resistor body is provided with the plastic envelope box, and one side of resistor body is provided with the electrode that runs through to the plastic envelope box outside, one side of plastic envelope box is provided with first mounting bracket, and the opposite side of plastic envelope box is provided with the second mounting bracket, the inner wall of first mounting bracket is provided with first fin. The utility model discloses a plastic envelope box that sets up can make the resistor body of cylinder form become the cuboid, the better placing of the resistor of being convenient for is in the inside of first mounting bracket and second mounting bracket, and first mounting bracket and second mounting bracket form a whole under the effect of locking hoop, be favorable to the resistor to fix on all kinds of electrical apparatus, can dispel the heat to the resistor body through the first fin and the second fin that set up simultaneously, and the louvre more is favorable to giving off of steam, the radiating effect is better.

Description

Plastic package structure of precision metal foil fixed resistor

Technical Field

The utility model relates to a resistor technical field specifically is an accurate metal forming fixed resistor plastic envelope structure.

Background

In precision electronic instrument, automatic control device, aerospace technology and national defense science and technology field, often need use have that the resistance value precision is high, the resistance temperature coefficient is low, distributed inductance and electric capacity are little, stable performance and small accurate foil fixed resistor, but present accurate foil fixed resistor is cylindric mostly, rolls easily, be unfavorable for the installation of product, the solder joint is not hard up, the resistance wire easily damages, the yield is low, current accurate foil fixed resistor radiating effect is not ideal simultaneously, lead to greatly reduced the life of resistor.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the plastic package structure of the precision metal foil fixed resistor is provided to solve the problems that most of the existing precision metal foil fixed resistors are cylindrical, roll easily and are not beneficial to product installation, welding spots are not loose, resistance wires are easy to damage, the rate of finished products is low, and meanwhile, the existing precision metal foil fixed resistors are not ideal in heat dissipation effect, so that the service life of the resistors is greatly reduced.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an accurate foil fixed resistor plastic envelope structure, includes the resistor, the outside of resistor body is provided with the plastic envelope box, and one side of resistor body is provided with the electrode that runs through to the plastic envelope box outside, one side of plastic envelope box is provided with first mounting bracket, and the opposite side of plastic envelope box is provided with the second mounting bracket, the inner wall of first mounting bracket is provided with first fin, the inner wall of second mounting bracket is provided with the second fin, and the surface of second fin and first fin all is provided with the louvre, one side of first mounting bracket is provided with the draw-in groove, one side of second mounting bracket is provided with the fixture block, and the fixture block cooperatees with the draw-in groove.

Preferably, both ends of the clamping block are provided with clamping heads, and both ends of the inner wall of the clamping groove are provided with grooves.

Preferably, the number of the chucks and the grooves is four, and the chucks are matched with the grooves.

Preferably, the locking hoops are arranged on the outer sides of the first mounting frame and the second mounting frame.

Preferably, one side of each of the first and second mounting brackets is provided with a through hole.

Preferably, the longitudinal sections of the first mounting frame and the second mounting frame are both in a U-shaped structure.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses a plastic envelope box that sets up can make the resistor body of cylinder form become the cuboid, the better placing of the resistor of being convenient for is in the inside of first mounting bracket and second mounting bracket, and first mounting bracket and second mounting bracket form a whole under the effect of locking hoop, be favorable to the resistor to fix on all kinds of electrical apparatus, can dispel the heat to the resistor body through the first fin and the second fin that set up simultaneously, and the louvre more is favorable to giving off of steam, the radiating effect is better.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is an exploded connection diagram of the first mounting frame and the second mounting frame of the present invention;

fig. 3 is a schematic view of the internal structure of the plastic box of the present invention.

In the figure: 1. a resistor body; 2. plastic packaging the box; 3. an electrode; 4. a first mounting bracket; 5. a second mounting bracket; 6. a locking band; 7. a through hole; 8. a first heat sink; 9. a second heat sink; 10. heat dissipation holes; 11. a clamping block; 12. a card slot; 13. clamping a head; 14. and (4) a 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.

Referring to fig. 1-3, a plastic package structure for a precision metal foil fixed resistor includes a resistor 1, a plastic package box 2 is disposed on an outer side of the resistor body 1, an electrode 3 penetrating through the plastic package box 2 is disposed on one side of the resistor body 1, a first mounting frame 4 is disposed on one side of the plastic package box 2, a second mounting frame 5 is disposed on the other side of the plastic package box 2, a first heat sink 8 is disposed on an inner wall of the first mounting frame 4, a second heat sink 9 is disposed on an inner wall of the second mounting frame 5, heat dissipation holes 10 are disposed on surfaces of the second heat sink 9 and the first heat sink 8, a clamping groove 12 is disposed on one side of the first mounting frame 4, a clamping block 11 is disposed on one side of the second mounting frame 5, and the clamping block 11 is matched.

The utility model discloses a plastic envelope box 2 that sets up can make the resistor body 1 of cylinder form become the cuboid, the better placing of the resistor of being convenient for is in the inside of first mounting bracket 4 and second mounting bracket 5, and first mounting bracket 4 and second mounting bracket 5 form a whole under the effect of locking hoop 6, be favorable to the resistor to fix on all kinds of electrical apparatus, first fin 8 and the second fin 9 through setting up can dispel the heat to resistor body 1 simultaneously, and louvre 10 more is favorable to giving off of steam, the radiating effect is better.

Please refer to fig. 2, two ends of the locking block 11 are provided with locking heads 13, two ends of the inner wall of the locking slot 12 are provided with grooves 14, the number of the locking heads 13 and the grooves 14 is four, and the locking heads 13 are matched with the grooves 14.

This kind of precision metal foil fixed resistor plastic envelope structure can block in the inside of draw-in groove 12 through the fixture block 11 that sets up, and dop 13 just in time is located the inside of recess 14, is favorable to a little fixed of fixture block 11 in draw-in groove 12 inside.

Please refer to fig. 1 and 2, the locking band 6 is disposed on the outer side of the first mounting bracket 4 and the second mounting bracket 5, the through hole 7 is disposed on one side of the first mounting bracket 4 and the second mounting bracket 5, and the longitudinal sections of the first mounting bracket 4 and the second mounting bracket 5 are both U-shaped.

This kind of precision metal foil fixed resistor plastic envelope structure can intermeshing through first mounting bracket 4 and the second mounting bracket 5 that sets up for the inside at first mounting bracket 4 and second mounting bracket 5 can be steadily placed to resistor body 1, and through-hole 7 can make the integral erection of first mounting bracket 4 and second mounting bracket 5 on the electrical apparatus.

The working principle is as follows: before using, utilize the plastic packaging machine to wrap up one deck plastic packaging box 2 in the outside of resistor body 1, be convenient for resistor body 1 to fix better in the inside at first mounting bracket 4 and second mounting bracket 5, then move first mounting bracket 4 and second mounting bracket 5 in opposite directions, make fixture block 11 card in the inside of draw-in groove 12, dop 13 just in time is located the inside of recess 14 this moment, be favorable to fixture block 11 slightly fixed inside draw-in groove 12, then utilize locking hoop 6 to fix first mounting bracket 4 and second mounting bracket 5, be convenient for the integral mounting of first mounting bracket 4 and the formation of second mounting bracket 5 on all kinds of electrical apparatus, can produce the heat when resistor body 1 during operation, first fin 8 and second fin 9 can disperse the heat this moment, louvre 10 can reduce the heat better simultaneously, the radiating effect is better.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a precision metal foil fixed resistor plastic envelope structure, includes resistor body (1), its characterized in that: the resistor comprises a resistor body (1), and is characterized in that a plastic package box (2) is arranged on the outer side of the resistor body (1), an electrode (3) penetrating through the outer side of the plastic package box (2) is arranged on one side of the resistor body (1), a first mounting frame (4) is arranged on one side of the plastic package box (2), a second mounting frame (5) is arranged on the other side of the plastic package box (2), first radiating fins (8) are arranged on the inner wall of the first mounting frame (4), second radiating fins (9) are arranged on the inner wall of the second mounting frame (5), radiating holes (10) are formed in the surfaces of the second radiating fins (9) and the first radiating fins (8), a clamping groove (12) is formed in one side of the first mounting frame (4), clamping blocks (11) are arranged on one side of the second mounting frame (5), and the clamping blocks (.

2. The plastic package structure of the precision metal foil fixed resistor according to claim 1, wherein: both ends of the clamping block (11) are provided with clamping heads (13), and both ends of the inner wall of the clamping groove (12) are provided with grooves (14).

3. The plastic package structure of the precision metal foil fixed resistor according to claim 2, wherein: the number of the clamping heads (13) and the number of the grooves (14) are four, and the clamping heads (13) are matched with the grooves (14).

4. The plastic package structure of the precision metal foil fixed resistor according to claim 1, wherein: and locking hoops (6) are arranged on the outer sides of the first mounting frame (4) and the second mounting frame (5).

5. The plastic package structure of the precision metal foil fixed resistor according to claim 1, wherein: one side of the first mounting frame (4) and one side of the second mounting frame (5) are both provided with through holes (7).

6. The plastic package structure of the precision metal foil fixed resistor according to claim 1, wherein: the longitudinal sections of the first mounting frame (4) and the second mounting frame (5) are both U-shaped structures.