IMPROVEMENTS IN BIMETAL THERMOMETERS

Abstract

This invention is to eliminate production-assembly difficulties of the bimetal thermometer (figure-1), and to facilitate maintenance-service operations by adding a mechanism (5) and adding 2 mechanism-body bushings (7) to fix this element to the bimetal thermometer body (3), thus facilitating and shortening the work.

Description

1 TARIFF IMPROVEMENTS IN BIMETAL THERMOMETERS Technical Area This invention eliminates the production and assembly difficulties of the bimetal thermometer (Figure 1), and In order to facilitate maintenance and service operations, mechanism (5) is added and this 2 mechanism-body for fixing the element to the bimetal thermometer body (3) The aim is to make the work easier and shorter by adding the bust (7). 10 State of the Art In current technology, bimetal thermometers are a type of thermometer used to measure temperature. These thermometers are bimetallic thermometers, made by using two different metals together. It consists of strips. Bimetallic strips are made by using two different metal sheets together. It is a material. This material tends to expand or contract depending on the temperature. Bimetal thermometers are particularly useful because of their nature of responding to temperature changes. They are frequently used in industrial settings. These thermometers display temperature changes using a 20-degree indicator. It operates through a series of mechanical movements culminating in an indicator. Automatic temperature control systems, ovens, refrigerators, air conditioning systems, boilers, medical devices requiring temperature measurement, and Like other industrial devices, it is used in many areas. Bimetal thermometer measuring system; two welded 25mm bimetals with different coefficients of thermal expansion. It consists of a metal strip. The helical or spiral shape of the bimetal strip changes with temperature. It creates rotational motion when its rotation changes. Since one end of the bimetallic spiral is fixed, the other end... It makes the thermometer rotate by moving its needle. Bimetal thermometers get their name basically from the bimetallic strip at the tip that makes contact with the temperature. It receives the heat from the strip. The bimetal strip converts the temperature change into mechanical displacement. It is a tool used for this purpose. It expands to different shades when heated; it is usually made of steel or... It consists of two different metal strips, sometimes made of copper, and sometimes brass. The strips are joined end-to-end by riveting, soldering, or welding. 35 Different expansions occur when the metal is heated, causing the flat strip to move in one direction. It forces bending; however, if the temperature drops below the initial level, the bending reverses. 2 This forces it to develop. With a higher coefficient of thermal expansion, the metal; when the strip is heated or inside When the portion is cooled, it lies on the outside of the curve. The lateral displacement of the strip is two It is much larger than a small longitudinal expansion towards each of the metals. In current technology, bimetal thermometers work as follows: Bimetal thermometers have a thermometer located at the end of the handle that measures the temperature of the environment to be measured. They sense temperature thanks to the bimetal sheath inside. The spiral is located inside this sheath. The bimetallic group shown in the figure is formed by joining two different metal plates, and the metals It works on the principle that the coefficients of elongation differ during heating. In this scenario... As the bimetal heats up, its length shortens, causing it to rotate the shaft that is spot-welded to it. This shaft then rotates 10 the transfer spring to which it is screwed, and which in turn is screwed to the needle shaft, and therefore Turning the needle shows the temperature change on the thermometer dial. First, the dial center bushing is mounted onto the dial. The needle shaft is then attached to the needle. The needle is attached. The pointer shaft is passed through the hole in the center of the dial's center bushing. Transfer spring 15 The group is spot-welded to the bimetal group at the shaft portion at its end. The other part of the transfer spring group... The other end of the needle shaft, which is already assembled with the dial assembly, is mounted to the other end of the needle shaft. However, this process without removing the dial from its place, but by slightly separating the case from the dial. It is possible to do this, but it requires a small area and is both a long and difficult task. Furthermore... If adjustments are necessary, you will again need to open the dial and reach the middle section; assembly labor 20 It is both difficult and time-consuming. Research has been conducted on national and international applications / registrations related to current technology. In the patent search conducted for the previous technique, 25 items were found in classification class H01H 37 / 00. There is a f.model numbered 2018 / 10245. This application is located under “Kamm (13) By adjusting the sensitivity from the cam indicator (14), the positioner's minimum sliding track (9) and position indicators located on the maximum sliding track (10) It has been fixed. Thus, the sensitivity adjustment cam (13) is made from a single point underneath. Adjustment option is provided. Limit switch positioner maximum (10) and minimum (9) 30 While the limit switch (12) is mounted on the sliding carriage, the limit switch positioner Minimum and maximum sliding limit switches are fitted to the side (16), limit switch positioner minimum sliding limit switch backrests (16) The limit switch is mounted in its exact position. This ensures quality and... It is related to "maximizing sensitivity". 35 3 Another application relating to the previous technique is numbered 2009 / 06365 in classification class G01K 5 / 00. This application is for a model and is used in "mini, midi, maxi electric household ovens. The invention relates to temperature..." setting knob (2), time setting knob (3), on / off switch (4), from the control panel (5) consists of and its feature is that it contains a bimetal thermometer (1)”. Another application related to the previous technique is ours in the H01H 37 / 52 classification class 5. This application, numbered 2017 / 09454, is a utility model application concerning "a bimetal regulator". This includes switching equipment (2) and at least one bimetallic equipment (4), bimetal hardware, switching hardware (2) in such an effective connection It is located or can be incorporated into the effect connection, which itself is the switching mechanism. This allows the equipment (2) to be switched depending on the temperature, where 10 Bimetal hardware (4) with at least one first bimetal element (6) and at least one curved second bimetal It has elements (8), they are connected to each other in a contact region (14) and contact In the region (14) it is formed in such a way that the thermal of the first bimetal element (6) The coefficient of expansion increases from its bottom (21) to its top (23) and curved The thermal expansion coefficient of the second bimetal element (8) is 15 from its bottom (21') to its top. (23') is related to "decreasing correctly or the opposite". In conclusion, with current technology, in the production and assembly stages of bimetal thermometers... to eliminate difficulties and to facilitate maintenance and service phases In order to create a more economical product, various improvements and enhancements were made. It is needed. Purpose of the Invention The invention provides for fastening and adjustment during the manufacturing-assembly and maintenance-service stages in existing technology. The goal is to develop solutions to the difficulties of these processes. 25 The primary purpose of the invention is to enable the assembly process to be carried out outdoors, and thus The goal is to find a solution to the difficult workmanship involved in the internal workings of thermometers. Another purpose of the invention is to enable easy adjustment of the dial. 30 Another aim of the invention is to make the assembly of the case and the dial quick and practical. The goal is to ensure that it is done in this way. Another aim of the invention is to provide easy servicing through the development made. 35 Another aim of the invention is to achieve labor savings. 4 The detailed description of the invention does not have any limiting factors in terms of better understanding the subject. This is explained with examples that will not create a problem. The structural and characteristic features and all the advantages of the invention are given in the figures below, in these 5 By referring to the figures, the detailed explanation provided makes it clearer. This will be understood, and therefore the evaluation should also take these figures and detailed explanations into consideration. It needs to be done by taking precautions. Figures to Help Understand the Invention 10 Figure 1 shows the internal structure of a bimetal thermometer. Explanation of Part References 1- Bimetal group 2- Bimetal casing 15 3- Bimetal thermometer body 4- Transfer spring group 5- Mechanism 6- Helical rivet 7- Mechanism-body bushing 20 8- Dial 9- Needle 10- Mechanism shaft 11- Pin Detailed Description of the Invention The invention eliminates production and assembly difficulties for a bimetal thermometer (Figure 1), and In order to facilitate maintenance and service operations, mechanism (5) is added and this 2 mechanism-body for fixing the element to the bimetal thermometer body (3) The aim is to make the work easier and shorter by adding the bust (7). 30 By contacting or including a bimetal group(1) in the environment where heat is to be perceived, helical The bimetal group (1) in the state of being elongated or shortened in the form of a spring (varies depending on the temperature) This elongation or shortening movement is done by the pin(11) which is welded to the bimetal group(1). It gives rotational motion. The rotational motion continuing along the pin (11) transfer spring 35 is transferred to group(4). To ensure the mechanism (5) is not left loose, 2 units are needed to fix it to the body. The mechanism is mounted on the housing bushing (7). Transfer spring assembly (4), mechanism (5) It is mounted on the mechanism shaft (10) part by means of bolts. Transfer spring Since the assembly of the group(4), the pointer (9) can be done before the assembly of the dial(8), it is open and It can be easily done in a large area. 5 The transfer spring assembly (4) can be mounted at one end of the mechanism (5) and the pointer (9) at the other end. Because the mechanism contains a shaft (10), the rotational movement resulting from heat exchange It is transmitted from the transfer spring assembly (4) to the mechanism (5) and from there to the pointer (9). Two mechanisms are required to fix the mechanism (5) to the bimetal thermometer body (3). The body bushing (7) is fixed to the bimetal thermometer body (3) by helical rivets (6). It ensures it stays put. Since the dial(8) can be fixed with the mechanism(5), the bimetal thermometer 15 of the dial(8) notch for fixing to the body (3) (interlocking claws for fixing) The need for opening the door is eliminated. In this respect, savings are achieved in labor costs. Also, when adjustment is needed, the dial(8) can be easily removed and lifted up quickly. And by creating opportunities for easy work, the labor process is made easier. 25 35

Claims

6 REQUESTS 1. The invention eliminates production and assembly difficulties and improves maintenance in bimetal thermometers. It is designed to facilitate service operations and its feature is a heat-sensing bimetallic sensor. group(1), bimetal sheath (2) covering the outer region of the bimetal group(1), bimetal 5 Pin(11) which transfers the rotational motion it receives from group(1) to the transfer spring group(4), The transfer spring assembly (4) transmits the rotational movement it receives from the pin (11) to the pointer (9), transfer integrated into the end of the spring assembly(4), containing the mechanism shaft(10) within itself and The mechanism(5) transmits the rotational movement to the pointer(9) via the mechanism shaft(10), dial(8) which can be fixed to the mechanism(5), bimetal thermometer 10 of the mechanism(5) Two mechanisms mounted with helical rivets (6) that enable fixing to the body (3). It includes a body bushing (7). 20 30