Electrodeless bidirectional constant current chip

Abstract

The utility model discloses an electrodeless bidirectional constant-current chip, which comprises a chip rack and two linear constant-current diodes, a concave cavity is arranged in the middle of the top surface of the chip rack, and an isolation convex strip is integrally formed in the middle of the concave cavity; two pins are arranged on the chip rack; the two linear current regulative diodes are located in the concave cavity and located on the two sides of the isolation protruding strip respectively, the two linear current regulative diodes are connected in parallel, the two ends of the two linear current regulative diodes are electrically connected with the two pins respectively after parallel connection, and positive and negative electrodes of the two linear current regulative diodes are reversely connected; and a sealant sealing layer is arranged at the top of the concave cavity. According to the utility model, the structure arrangement is reasonable, the two linear current regulative diodes which are connected in parallel and of which the positive and negative plates are reversely connected are arranged in the chip rack, stepless bidirectional constant current is realized, the use requirement is reduced, the wiring design and processing cost can be reduced, and when in use, one constant current chip can replace two constant current chips, so that the cost is reduced. The use cost is reduced, the application range is widened, the applicability is high, and the practicability is good.

Description

Technical Field

[0001] The utility model belongs to the technical field of constant current chips, and in particular relates to a stepless bidirectional constant current chip. Background Art

[0002] In order to ensure the stability and reliability of lighting in light strips or light source panels, there are generally corresponding constant current chips. Although the constant current chips in the prior art can meet the general usage requirements, they have strict requirements on the positive and negative pole connections of the input. When the positive and negative poles are connected in reverse, the corresponding functions cannot be effectively realized. Therefore, in actual application, the wiring requirements are high, which is not conducive to design and will also increase the design and processing costs, so the applicability and practicality are limited. Utility Model Content

[0003] The utility model aims to provide a stepless bidirectional constant current chip which has a reasonable structure and is conducive to improving the scope of application.

[0004] The technical solution to achieve the purpose of the utility model is a non-polar bidirectional constant current chip, comprising a chip frame and two linear constant current diodes, wherein a concave cavity is provided in the middle of the top surface of the chip frame, and an isolation convex strip is integrally formed in the middle of the concave cavity;

[0005] The chip frame is provided with two pins;

[0006] The two linear constant current diodes are respectively located in the concave cavity and on both sides of the isolation convex strip, the two linear constant current diodes are connected in parallel and the two ends are electrically connected to the two pins respectively after the parallel connection, and the positive and negative electrodes of the two linear constant current diodes are reversely connected;

[0007] A sealing glue layer is arranged on the top of the cavity.

[0008] Further preferably, the depth of the cavity is greater than the height of the linear constant current diode.

[0009] Further preferably, the cavity is a rhombus-shaped cavity with a small bottom and a large top.

[0010] More preferably, the chip rack has a length*width of 3.5 mm*2.8 mm.

[0011] The utility model has positive effects: the structure of the utility model is reasonably arranged, and two linear constant current diodes connected in parallel and with the positive and negative plates reversely connected are arranged in the chip frame, so as to realize stepless bidirectional constant current. There is no requirement for the positive and negative pole connections when in use, which reduces the use requirements and can also reduce the wiring design and processing costs. Moreover, when in use, one constant current chip can be used to replace two constant current chips, which is beneficial to reduce the use cost and to improve its scope of application. It has strong applicability and good practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to make the content of the utility model easier to understand, the utility model is further described in detail below according to specific embodiments and in conjunction with the accompanying drawings, wherein:

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 It is a schematic diagram of the cross-sectional structure in the utility model.

[0015] Reference numerals: chip frame 1, linear constant current diode 2, cavity 3, isolation convex strip 4, pin 5, sealing glue sealing layer 6. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] Example

[0018] See Figure 1 to Figure 2 As shown, a non-polar bidirectional constant current chip includes a chip frame 1 and two linear constant current diodes 2, and the chip frame and the linear constant current diodes are conventional structures of the prior art, which are simply applied and are not recorded in detail.

[0019] At the same time, in actual application, a cavity 3 is provided in the middle of the top surface of the chip frame, and an isolation ridge 4 is integrally formed in the middle of the cavity; the height of the isolation ridge can be set as needed. In this embodiment, the height of the isolation ridge is less than the height of the linear constant current diode.

[0020] At the same time, two pins 5 are arranged on the chip frame; when packaged, the two linear constant current diodes are respectively located in the concave cavity and on both sides of the isolation convex strip, the two linear constant current diodes are connected in parallel and the two ends are respectively electrically connected to the two pins after the parallel connection, and the positive and negative poles of the two linear constant current diodes are reversely connected; a sealing layer 6 is arranged on the top of the concave cavity. Through the above structure, the requirements for connecting the pins with the positive or negative poles are reduced, the convenience of connection is improved, which is conducive to improving its scope of application, and can ensure the stability and reliability of its use.

[0021] In actual application, the depth of the cavity is greater than the height of the linear constant current diode. The cavity is a rhombus-shaped cavity with a small bottom and a large top. The length and width of the chip rack are 3.5 mm*2.8 mm. In this embodiment, the above structure can meet the use requirements of the light strip or light source board, and is highly practical.

[0022] The utility model has positive effects: the structure of the utility model is reasonably arranged, and two linear constant current diodes connected in parallel and with the positive and negative plates reversely connected are arranged in the chip frame, so as to realize stepless bidirectional constant current. There is no requirement for the positive and negative pole connections when in use, which reduces the use requirements and can also reduce the wiring design and processing costs. Moreover, when in use, one constant current chip can be used to replace two constant current chips, which is beneficial to reduce the use cost and to improve its scope of application. It has strong applicability and good practicality.

[0023] The standard parts used in this embodiment can be purchased directly from the market, and the non-standard structural components recorded in the specification can also be directly processed according to existing technical common sense. At the same time, the connection method of each component adopts the mature conventional means in the prior art, and the machinery, parts and equipment all adopt the conventional models in the prior art, so no specific description will be given here.

[0024] Obviously, the above embodiments of the present invention are merely examples for clearly explaining the present invention, and are not intended to limit the implementation methods of the present invention. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. However, these obvious changes or modifications derived from the essential spirit of the present invention still belong to the protection scope of the present invention.

Claims

1. A non-polar bidirectional constant current chip, comprising a chip frame and two linear constant current diodes, characterized in that: A concave cavity is provided in the middle of the top surface of the chip frame, and an isolation convex strip is integrally formed in the middle of the concave cavity; The chip frame is provided with two pins; The two linear constant current diodes are respectively located in the concave cavity and on both sides of the isolation convex strip, the two linear constant current diodes are connected in parallel and the two ends are electrically connected to the two pins respectively after the parallel connection, and the positive and negative electrodes of the two linear constant current diodes are reversely connected; A sealing glue layer is arranged on the top of the cavity.

2. A stepless bidirectional constant current chip according to claim 1, characterized in that: The depth of the cavity is greater than the height of the linear constant current diode.

3. A stepless bidirectional constant current chip according to claim 2, characterized in that: The concave cavity is a rhombus-shaped concave cavity with a small bottom and a large top.

4. The stepless bidirectional constant current chip according to claim 1, characterized in that: The length*width of the chip frame is 3.5mm*2.8mm.

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