CN211294772U

CN211294772U - Double-cap type chip resistor

Info

Publication number: CN211294772U
Application number: CN202020332962.8U
Authority: CN
Inventors: 熊士理; 熊耀辉
Original assignee: Shenzhen Lanbo Anke Electronic Co ltd
Current assignee: Shenzhen Lanbo Anke Electronic Co ltd
Priority date: 2020-03-17
Filing date: 2020-03-17
Publication date: 2020-08-18
Anticipated expiration: 2030-03-17

Abstract

The utility model discloses a double-cap chip resistor, which comprises a resistor main body and conductive metal sleeves arranged at two ends of the resistor main body, wherein the resistor main body comprises a resistor rod; the fixing caps are arranged at two ends of the resistance rod, the outer sides of the fixing caps are provided with conductive contact pieces, and the conductive metal sleeves are sleeved outside the fixing caps. The utility model provides a damaged, the switching on unusually of conductor contact surface appears easily after long-time the use in individual layer resistance cap structure among the prior art, the problem of opening circuit even.

Description

Double-cap type chip resistor

Technical Field

The utility model relates to a former device field of electron, in particular to double cap formula chip resistor.

Background

A Chip Resistor (SMD Resistor), also known as a Chip Fixed Resistor, is one of the metal glass enamel resistors. The resistor is manufactured by mixing metal powder and glass glaze powder and printing the mixture on a substrate by a screen printing method. It is resistant to humidity and high temperature and has small temperature coefficient. The circuit space cost can be greatly saved, and the design is more refined. The chip resistor in the prior art usually adopts a single-layer metal cap structure, and after the chip resistor is used for a long time, if a contact surface with a conductor is damaged, or a contact point is separated by a foreign matter, the chip resistor can generate the problems of abnormal conduction and even disconnection. The present invention provides a double-cap chip resistor, which is used to solve the problem that the single-layer chip resistor may be used for a long time.

SUMMERY OF THE UTILITY MODEL

The present invention aims at solving at least one of the technical problems in the related art to a certain extent. Therefore, the main object of the present invention is to provide a double-cap chip resistor, which aims to solve the problem that the single-layer resistor cap structure in the prior art is easy to be broken or abnormal in conduction or even open circuit after long-time use.

In order to achieve the above object, the present invention provides a double-cap chip resistor, which comprises a resistor main body and conductive metal sleeves disposed at two ends of the resistor main body, wherein the resistor main body comprises a resistor rod; the fixing caps are arranged at two ends of the resistance rod, the outer sides of the fixing caps are provided with conductive contact pieces, and the conductive metal sleeves are sleeved outside the fixing caps.

In one embodiment, the retaining cap is a ceramic protective housing.

In one embodiment, the conductive metal sleeve and the fixing cap are in riveted connection.

In one embodiment, the joint of the resistance rod and the fixing cap is provided with a waterproof coating.

In one embodiment, the conductive contact and the fixing cap are connected by welding.

The utility model has the advantages as follows:

this technical scheme has cup jointed the conductive metal cover in addition through the locking cap outside at resistance main part both ends, has protected weak conductive contact not to receive outside foreign matter to influence, avoids the trouble problem that consequently takes place with electrical apparatus.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic view of the overall structure of the resistor main body and the conductive metal sleeve of the present invention.

Fig. 2 is a schematic view of the structure of the conductive metal sleeve and the resistor main body according to the present invention.

[ list of reference numerals for main parts/components ]

Reference numerals	Name (R)	Reference numerals	Name (R)
				1	Resistor body	12	Conductive contact piece
10	Resistance rod	2	Conductive metal sleeve
				11	Fixing cap

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. It is obvious that the described embodiments are only some of the embodiments of the present invention, and not all of them.

Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that all the directional indicators (e.g., upper, lower, left, right, front, rear … …) in the embodiments of the present invention are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific state (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly.

The description in this application as relating to "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying any relative importance or implicit indication of the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected" and "fixed" are to be construed broadly, e.g., "fixed" may be a fixed connection, a removable connection, or an integral molding; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In addition, technical solutions between the embodiments of the present invention can be combined with each other, but it is necessary to be able to be realized by a person having ordinary skill in the art as a basis, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent, and is not within the protection scope of the present invention.

Example 1:

referring to fig. 1 to 2, a double-cap chip resistor includes a resistor main body 1 and conductive metal sleeves 2 disposed at two ends of the resistor main body 1, wherein the resistor main body 1 includes a resistor rod 10; fixing caps 11 arranged at two ends of the resistance rod 10, conductive contacts 12 arranged on the outer sides of the fixing caps 11, and conductive metal sleeves 2 sleeved outside the fixing caps 11.

Through the outside of the fixing cap 11 at the two ends of the resistor main body 1, the conductive metal sleeve 2 is sleeved in addition, so that the weak conductive contact 12 is protected from being influenced by external foreign matters, and the problem of faults caused by electrical appliances is avoided. The external wire is contacted with the conductive metal sleeve 2, and the conductive metal sleeve 2 is conducted with the internal conductive contact 12 to form a passage.

Referring to fig. 2, the fixing cap 11 is preferably a ceramic protective case.

Referring to fig. 2, the conductive metal sheath 2 is preferably riveted to the fixing cap 11.

The conductive metal sleeve 2 and the fixing cap 11 which are connected in a riveting mode are convenient to assemble.

Referring to fig. 2, preferably, the joint of the resistance rod 10 and the fixing cap 11 is provided with a waterproof coating.

In order to prevent external water vapor from entering the inside of the resistance rod 10 to cause damage, a waterproof coating is arranged at the joint of the resistance rod and the fixing cap 11.

Referring to fig. 2, the conductive contact 12 is preferably connected to the fixing cap 11 by welding.

The working principle of the utility model is as follows:

the outside of the fixing caps 11 at the two ends of the resistor main body 1 is additionally sleeved with the conductive metal sleeve 2, so that the weak conductive contact 12 is protected from being influenced by external foreign matters, and the problem of faults of electrical appliances caused by the weak conductive contact is avoided. The external wire is contacted with the conductive metal sleeve 2, and the conductive metal sleeve 2 is conducted with the internal conductive contact 12 to form a passage. The weak conductive contact 12 is protected from being influenced by external foreign matters, and the problem of faults of the electric appliance caused by the weak conductive contact is avoided.

The above only be the preferred embodiment of the utility model discloses a not consequently restriction the utility model discloses a patent range, all are in the utility model discloses a conceive, utilize the equivalent structure transform of what the content was done in the description and the attached drawing, or direct/indirect application all is included in other relevant technical field the utility model discloses a patent protection within range.

Claims

1. A double-cap chip resistor is characterized by comprising a resistor main body and conductive metal sleeves arranged at two ends of the resistor main body, wherein the resistor main body comprises a resistor rod; the fixing caps are arranged at two ends of the resistance rod, conductive contact pieces are arranged on the outer sides of the fixing caps, and the conductive metal sleeves are sleeved outside the fixing caps.

2. The double cap chip resistor as claimed in claim 1, wherein the fixing cap is a ceramic protection housing.

3. The double cap chip resistor as claimed in claim 1, wherein the conductive metal sheath is riveted to the fixing cap.

4. The double-cap chip resistor as claimed in claim 1, wherein the connection between the resistor rod and the fixing cap is provided with a waterproof coating.

5. The double cap chip resistor as claimed in claim 1, wherein the conductive contacts are soldered to the fixed cap.