Micro thermal protector material belt

Abstract

The utility model relates to the field of thermal protectors, in particular to a miniature thermal protector material belt, which comprises a strip-shaped connecting sheet and a plurality of bases uniformly arranged on the connecting sheet, each base comprises an injection molding part and a metal bottom plate, a static contact is arranged on each metal bottom plate, and each metal bottom plate is embedded into the corresponding injection molding part; one end of the metal bottom plate extends out of the injection molding piece to form a connecting part, and the connecting part is connected with the connecting piece; one side of the injection molding part is provided with a groove used for accommodating the bimetallic strip, and the static contact penetrates out of the injection molding part and is located in the groove. When the miniature thermal protector material belt is used, after the connecting sheet is fixed, the plurality of bimetallic strips are sequentially arranged in the plurality of grooves, and then the metal cover plate is used for abutting against the bimetallic strips to enable the movable contacts on the bimetallic strips to be in contact with the static contacts on the bottom plate, so that the production efficiency can be improved through a batch operation mode.

Description

A miniature thermal protector strip Technical Field

[0001] This utility model relates to the field of thermal protectors, specifically a miniature thermal protector strip. Background Technology

[0002] Thermal protectors are commonly used protective components, and their performance directly affects the safety of circuits. Existing miniature thermal protectors are manufactured one by one, which results in low production efficiency. People have been researching how to improve production efficiency. Summary of the Invention

[0003] To address the problems existing in the prior art, this utility model provides a miniature thermal protector strip to solve the aforementioned technical problems.

[0004] To achieve the aforementioned objectives, this utility model provides the following technical solution:

[0005] A miniature thermal protector strip includes a long strip connecting piece and a plurality of bases evenly arranged on the connecting piece. The base includes an injection molded part and a metal base plate. The metal base plate is provided with stationary contacts and is embedded in the injection molded part. One end of the metal base plate extends out of the injection molded part to form a connecting part, which is connected to the connecting piece. One side of the injection molded part is provided with a groove for accommodating the bimetallic strip, and the stationary contacts protrude from the injection molded part and are located in the groove.

[0006] Preferably, the connecting piece is a metal connecting piece, and the metal connecting piece is integrally formed with the connecting part.

[0007] Preferably, the injection molded part has a recess.

[0008] Preferably, the connecting piece is provided with a plurality of positioning holes evenly distributed therefrom, and the positioning holes are spaced apart from the connecting part.

[0009] When using the aforementioned miniature thermal protector strip, after fixing the connecting piece, place multiple bimetallic strips sequentially into multiple grooves. Then, use a metal cover plate to hold the bimetallic strips together so that the moving contacts on them make contact with the stationary contacts on the base plate. This allows for batch production, improving production efficiency.

[0010] Another technical solution provided by this utility model is as follows: a miniature thermal protector strip, comprising a long strip of metal sheet and a plurality of metal cover plates uniformly arranged on the metal sheet, wherein the metal cover plates are provided with a connecting structure for connecting to the injection molded part, and a connector is integrally provided at one end of the metal cover plate, wherein the connector is integrally provided with the metal sheet.

[0011] Preferably, the connecting structure is a protruding piece that mates with the aforementioned recess.

[0012] Preferably, the protrusion can be engaged with the recess.

[0013] Preferably, the metal sheet is provided with a plurality of fixing holes evenly distributed therefrom, and the fixing holes are spaced apart from the connector.

[0014] When using a miniature thermal protector, multiple metal covers are placed on the injection molded part. After placing the bimetallic strip inside the injection molded part, the metal covers are fixed to the injection molded part. This can improve production efficiency through batch operations. Attached Figure Description

[0015] Figure 1 shows a schematic diagram of the structure of the miniature thermal protector strip in Example 1;

[0016] Figure 2 shows an enlarged view of Figure 1 at point A;

[0017] Figure 3 shows a schematic diagram of the injection molded part;

[0018] Figure 4 shows a schematic diagram of the structure of the miniature thermal protector strip in Example 2;

[0019] Marked in the attached diagram:

[0020] Base 10, injection molded part 10-1, groove 10-1, metal base plate 10-2, connecting part 10-21, recess 10-3, connecting piece 20, flange 20-1, stationary contact 30, positioning hole 40, metal cover plate 50, connecting body 50-1, protruding piece 50-2, metal piece 60, fixing hole 70. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Example 1, please refer to Figures 1-3. The miniature thermal protector strip in this example includes a long strip connecting piece 20 and a plurality of bases 10 evenly arranged on the connecting piece. The base includes an injection molded part 10-1 and a metal base plate 10-2. The metal base plate is provided with a stationary contact 30 and is embedded in the injection molded part. One end of the metal base plate extends out of the injection molded part to form a connecting part 10-21, which is connected to the connecting piece. One side of the injection molded part is provided with a groove 10-11 for accommodating the bimetallic strip, and the stationary contact protrudes from the injection molded part and is located in the groove. The connecting piece is preferably a metal connecting piece, which is integrally formed with the connecting part.

[0023] When using the aforementioned miniature thermal protector strip, after fixing the connecting piece, place multiple bimetallic strips sequentially into multiple grooves. Then, use a metal cover plate to hold the bimetallic strips together so that the moving contacts on them make contact with the stationary contacts on the base plate. This allows for batch production, improving production efficiency.

[0024] In one embodiment, the injection molded part is provided with a recess 10-3 to facilitate engagement with a metal cover plate.

[0025] To facilitate fixing the strip, multiple positioning holes 40 can be evenly provided on the connecting piece, with the positioning holes spaced apart from the connecting part.

[0026] Example 2, please refer to Figure 4. The miniature thermal protector strip in this example is used in conjunction with the miniature thermal protector strip in Example 1. It includes a long strip of metal sheet 60 and a plurality of metal cover plates 50 evenly arranged on the metal sheet. The metal cover plates are provided with a connection structure for connecting to the injection molded part. One end of the metal cover plate is integrally provided with a connector 50-1, which is integrally provided with the metal sheet.

[0027] When using this miniature thermal protector, multiple metal cover plates are placed on the injection molded part. After placing the bimetallic strip inside the injection molded part, the metal cover plates are fixed to the injection molded part.

[0028] In a preferred embodiment, the connecting structure is a protruding piece 50-2 that mates with the aforementioned recess. When fixing the metal cover plate, the protruding piece can be directly snapped onto the recess. To improve stability, the protruding piece can be pressed firmly against the recess, or it can be clamped onto the recess using its own elasticity. Additionally, during manufacturing, an encapsulation can be provided to press the metal cover plate firmly.

[0029] To facilitate fixing the strip, a plurality of fixing holes 70 are evenly provided on the metal sheet, and the fixing holes are spaced apart from the connecting body.

[0030] This structure can improve production efficiency through batch operations, especially since it can be operated with mechanical equipment, which is even more efficient.

[0031] It should be noted that the terms "one embodiment," "embodiment," "exemplary embodiment," and "some embodiments" used in the specification indicate that the described embodiment may include a specific feature, structure, or characteristic, but not every embodiment necessarily includes that specific feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Moreover, when a specific feature, structure, or characteristic is described in connection with an embodiment, implementing such a feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not, is within the knowledge scope of those skilled in the art.

[0032] It should be readily understood that “on,” “above,” and “on top of” in this disclosure should be interpreted in the broadest manner, such that “on” means not only “directly on something” but also “on something” with an intermediate feature or layer therebetween, and that “above” or “on top of” means not only “on something” but also “on something” without an intermediate feature or layer therebetween (i.e., directly on something).

[0033] Furthermore, for ease of explanation, spatially relative terms such as "below," "below," "under," "above," and "above" may be used to describe the relationship of one element or feature relative to other elements or features as shown in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation other than those shown in the figures. The device may have other orientations (rotated 90 degrees or in other orientations), and the spatially relative descriptive terms used herein may be interpreted accordingly.

[0034] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A miniature thermal protector strip, characterized in that, The device includes a long strip connecting piece (20) and a plurality of bases (10) evenly arranged on the connecting piece. The base includes an injection molded part (10-1) and a metal base plate (10-2). The metal base plate is provided with a stationary contact (30) and is embedded in the injection molded part. One end of the metal base plate extends out of the injection molded part to form a connecting part (10-21) and is connected to the connecting piece. One side of the injection molded part is provided with a groove (10-11) for accommodating a bimetallic strip, and the stationary contact protrudes from the injection molded part and is located in the groove.

2. The miniature thermal protector strip according to claim 1, characterized in that, The connecting piece is a metal connecting piece, and the metal connecting piece is integrally formed with the connecting part.

3. The miniature thermal protector strip according to claim 2, characterized in that, The injection molded part is provided with a recess (10-3).

4. The miniature thermal protector strip according to any one of claims 1-3, characterized in that, The connecting piece is provided with a plurality of positioning holes (40) evenly distributed, and the positioning holes are spaced apart from the connecting part.

5. A miniature thermal protector strip, characterized in that, It includes a long strip of metal sheet (60) and a plurality of metal cover plates (50) evenly arranged on the metal sheet. The metal cover plates are provided with a connection structure for connecting to the injection molded part. One end of the metal cover plate is integrally provided with a connector (50-1), which is integrally provided with the metal sheet.

6. The miniature thermal protector strip according to claim 5, characterized in that, The connecting structure is a protruding piece (50-2) that mates with the recess.

7. The miniature thermal protector strip according to claim 6, characterized in that, The protrusion can be engaged in the recess.

8. The miniature thermal protector strip according to any one of claims 5-7, characterized in that, The metal sheet is provided with a plurality of fixing holes (70) evenly distributed, and the fixing holes are spaced apart from the connector.

Images