Improved structure of bimetallic strip

Abstract

An improved structure of a bimetallic strip relates to the technical field of temperature control, and comprises a quincunx bimetallic strip body with four petals uniformly distributed along the periphery, the quincunx bimetallic strip body is in a cambered surface shape, and the edges of the petals of the quincunx bimetallic strip body are in a circular arc shape with the center of the quincunx bimetallic strip body as the circle center. Convex reinforcing ribs are arranged on the petals perpendicular to the edges of the arc-shaped petals, and the convex reinforcing ribs directly reach the edges of the arc-shaped petals. Compared with the prior art, the electric heating wire disc has the advantages of high manufacturing efficiency, easiness in fixing the shape of the electric heating wire disc, high production efficiency and low cost.

Description

Technical Field

[0001] This utility model relates to the field of temperature control technology, and in particular to an improved structure of a bimetallic strip. Background Technology

[0002] In the snap-action thermostat industry, circular metal discs (A) are generally used. These discs offer stable performance; when the temperature reaches the set point and the thermostat snaps, the disc remains stably engaged within the thermostat's slot, ensuring stable deformation and thus guaranteeing stable temperature detection. However, because the circular metal disc is manufactured by stamping from bimetallic strip B, certain issues arise. Figure 3 As shown, more than 45% of the waste will be generated, which not only wastes materials but also significantly increases manufacturing costs.

[0003] Therefore, the inventors attempted to use a plum blossom-shaped design, manufacturing the bimetallic sheet in a plum blossom shape, such as... Figure 2 As shown, it can avoid the generation of more than 30% of waste. However, due to the uneven transmission of sudden stress by the missing edge of the plum blossom-shaped bimetallic sheet C, and because the missing edge is in an unrestricted state, the sudden deformation can easily cause irreversible deformation when returning to the original state after sudden deformation, which in turn causes the deformation temperature to shift, and also makes the temperature detection inaccurate. Summary of the Invention

[0004] The purpose of this invention is to provide an improved structure for a bimetallic strip that can overcome one or more of the above-mentioned disadvantages, while ensuring stable temperature detection, making full use of materials, and reducing manufacturing costs.

[0005] This invention is implemented as follows: it includes a plum blossom-shaped bimetallic sheet body with four petals evenly distributed around the perimeter. The plum blossom-shaped bimetallic sheet body has an outwardly convex arc surface. The edge of the petals of the plum blossom-shaped bimetallic sheet body is an arc shape with the center of the plum blossom-shaped bimetallic sheet body as the center. On the petals perpendicular to the edge of the arc-shaped petals, there are outwardly convex reinforcing ribs that extend to the edge of the arc-shaped petals.

[0006] The edges of the petals of the flower-shaped bimetallic strip are arc-shaped with the center of the flower-shaped bimetallic strip as the center, so that the flower-shaped bimetallic strip can be locked in the circular slot of the temperature controller, so that the flower-shaped bimetallic strip will not shift when the temperature changes suddenly, thus ensuring the stability of temperature detection.

[0007] By employing outwardly convex reinforcing ribs, even if the plum blossom-shaped bimetallic sheet body has four missing edges during abrupt changes, resulting in uneven stress transmission from the missing edges, the petals can still be stably locked in the slot of the thermostat without shifting due to the reinforcing effect of the outwardly convex reinforcing ribs. This ensures that when the plum blossom-shaped bimetallic sheet recovers after abrupt changes, it can return to its original state, preventing the deformation temperature from shifting.

[0008] Because it uses a quincunx-shaped bimetallic strip body, it can make full use of the bimetallic strip and save 40% of the material compared to conventional circular discs.

[0009] Preferably, the protruding reinforcing rib is a groove-shaped protrusion. One end of the groove-shaped reinforcing rib is open and located on the edge of the arc-shaped petal, while the other end of the groove-shaped reinforcing rib is blind. This allows the groove-shaped reinforcing rib to smoothly transition with the plum blossom-shaped bimetallic strip body, so that the groove-shaped reinforcing rib can be processed simultaneously when stamping from the bimetallic strip, thereby ensuring production efficiency.

[0010] Compared with existing technologies, this invention has the advantages of ensuring stable detection temperature while making full use of materials and reducing manufacturing costs. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the improved structure of the bimetallic strip of this utility model;

[0012] Figure 2 A layout diagram of the improved structure of the bimetallic sheet of the present invention for processing bimetallic strip;

[0013] Figure 3 This is a layout diagram of bimetallic sheets for existing technologies in bimetallic strip processing.

[0014] Figure numbers: 1-Plum blossom-shaped bimetallic sheet body; 101-Petals; 102-Edge; 103-Concave arc notch; 104-Arc edge; 2-Reinforcing rib; 201-Open opening; 202-Blind opening. Detailed Implementation

[0015] The improved structure of the bimetallic sheet of this utility model will now be described in further detail with reference to the accompanying drawings and embodiments:

[0016] like Figure 1 As shown, the improved structure of the bimetallic strip of this utility model is achieved as follows: it includes a plum blossom-shaped bimetallic strip body 1 with four petals 101 evenly distributed around the periphery. The plum blossom-shaped bimetallic strip body 1 has an outwardly convex arc surface. The edge 102 of the petals 101 of the plum blossom-shaped bimetallic strip body 1 is an arc shape with the center of the plum blossom-shaped bimetallic strip body 1 as the center. An outwardly convex reinforcing rib 2 is provided on the petals 101 perpendicular to the edge 102 of the arc-shaped petals. The outwardly convex reinforcing rib 2 extends to the edge 102 of the arc-shaped petals.

[0017] Preferably, the outwardly protruding reinforcing rib 2 is a groove-shaped protrusion. One end of the groove-shaped protrusion 2 is an open end 201 located on the edge 102 of the arc-shaped petal, and the other end of the groove-shaped protrusion rib 2 is a blind end 202, so that the groove-shaped protrusion rib 2 and the plum blossom-shaped bimetallic strip body 1 can be smoothly transitioned, so that the groove-shaped protrusion rib 2 can be processed at the same time when stamping on the bimetallic strip, thereby ensuring production efficiency.

[0018] Preferably, two adjacent petals 101 are connected by a concave arc notch 103, and the concave arc notch 103 and the edge 102 of the arc-shaped petal are transitioned by an arc edge 104.

[0019] By using the concave arc notch 103 and the arc edge 104, even if the uneven transmission of sudden stress is caused by the missing edge, the stress changes continuously and smoothly, and there will be no sudden stress change at a certain part, thus preventing damage to the bimetallic sheet due to sudden stress concentration at a certain point.

Claims

1. An improved structure of a bimetallic sheet, characterized in that, It includes a plum blossom-shaped bimetallic sheet body with four petals evenly distributed around the perimeter. The plum blossom-shaped bimetallic sheet body has an outwardly convex arc surface. The edge of the petals of the plum blossom-shaped bimetallic sheet body is an arc with the center of the plum blossom-shaped bimetallic sheet body as the center. On the petals perpendicular to the edge of the arc-shaped petals, there are outwardly convex reinforcing ribs that extend to the edge of the arc-shaped petals.

2. The improved structure of the bimetallic sheet according to claim 1, characterized in that, The outward-protruding reinforcing ribs are groove-shaped protrusions. One end of the groove-shaped reinforcing ribs is open and located on the edge of the arc-shaped petals, while the other end of the groove-shaped reinforcing ribs is blind, allowing the groove-shaped reinforcing ribs to smoothly transition with the plum blossom-shaped bimetallic sheet body.

3. The improved structure of the bimetallic sheet according to claim 1 or 2, characterized in that, Adjacent petals are connected by an inwardly concave arc notch, and the inwardly concave arc notch is connected to the edge of the arc-shaped petal by an arc edge.

Images