Unlock instant, AI-driven research and patent intelligence for your innovation.

A High Precision Current Setting Structure of Thermal Overload Relay

A thermal overload relay, high-precision technology, applied in the direction of protection switch operation/release mechanism, etc., can solve the problem of low current setting accuracy, and achieve the effect of solving low current setting accuracy, ensuring positioning accuracy, and improving current setting accuracy.

Active Publication Date: 2019-08-20
DELIXI ELECTRIC
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Obviously, the larger the gap S is, the lower the current setting accuracy of the product is.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A High Precision Current Setting Structure of Thermal Overload Relay
  • A High Precision Current Setting Structure of Thermal Overload Relay
  • A High Precision Current Setting Structure of Thermal Overload Relay

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0043] Such as Figure 17-19 Said, a high-precision thermal overload relay current setting structure, comprising a support 1, a U-shaped piece 2, a compensation double gold 3, an adjusting screw 4 and a setting cam 5, wherein the U-shaped piece 2 is assembled on the support 1, One side of the compensation double gold 3 is connected with the U-shaped piece 2, and the other side is connected with the adjusting screw 4 to form a compensation double gold component such as Figure 15-16 Shown. The setting cam 5 is in tangential contact with the adjusting screw 4.

[0044] The specific structure of each component is as follows:

[0045] Such as Figure 3~4 Said support 1 has a stepped shape and includes a support plane 11 and a coaxial large cylinder 12 and a small cylinder 13 arranged in sequence thereon.

[0046] Such as Figure 5-8 The U-shaped member 2 includes an upper plane 24 and a lower plane 25 that are parallel to each other. The upper plane 24 and the lower plane 25 are provide...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a high precision thermal overload relay current setting structure comprising a bearer (1), a compensation dual-metal (3), an adjusting screw (4), and a setting cam (5); a gap S is arranged between the current setting structure and a fixed part (7) of the thermal overload relay; the high precision thermal overload relay current setting structure also comprises a U-type member (2); the bearer (1) is provided with a bearer plane(11); the U-type member (2) extends outside the top of the bearer (1), and the extension portion is fused into a limit step (15); the gap S can be 0 under the common effect of the bearer plane (11) and the limit step (15). Compared with the prior art, the thermal overload relay current setting precision is higher, and the cost is lower.

Description

Technical field [0001] The invention belongs to the field of relays, and in particular relates to a thermal overload relay, in particular to a high-precision thermal overload relay current setting structure. Background technique [0002] Thermal overload relay is a commonly used relay. In use, the bimetal is connected in series in the main circuit controlled by the thermal overload relay. When the current flowing through the main circuit of the bimetal is less than or equal to the rated current, the bimetal is It is heated to a certain bending stroke, but it is not enough to push the reset action mechanism of the thermal overload relay to ensure the normal starting and operation of the load (such as the motor); when an overload current (greater than the rated current) or phase failure occurs in the main circuit, The bimetal is heated to a larger bending stroke and is sufficient to push the action mechanism of the thermal overload relay to produce a tripping action, so as to use t...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01H71/16
Inventor 蔡洪洲李新叶林川
Owner DELIXI ELECTRIC