Moving contact assembly

Abstract

The utility model discloses a movable contact assembly relates to switch electric appliance technical field, the utility model discloses a shell, movable contact body, movable contact body includes movable contact frame, first movable piece, second movable piece, spring support, spring body, apron, first movable piece, second movable piece, spring support, spring body, apron can be disassembled and installed in movable contact frame, and the middle part of first movable piece, second movable piece is located in spring support, and spring body is installed in spring support, and the bottom of spring body is contacted with the upper surface of second movable piece, in the utility model, movable contact assembly only is by movable contact frame, first movable piece, second movable piece, spring support, spring body, apron etc. core parts constitute, and the structure is very simple, and the production cost is low, and the whole assembling process can be completed only manually, and this completely gets rid of the dependence on expensive, complex special tool, and the construction cost of production line is reduced, and the production efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage electrical switch technology, specifically to moving contact assemblies. Background Technology

[0002] The moving contact is one of the core components of a switching device, responsible for connecting and disconnecting the circuit through its contact and separation with the stationary contact. A typical moving contact assembly usually includes the moving contact body, a spring for providing contact pressure, and possibly a transmission component.

[0003] Some existing moving contact assemblies have shortcomings in structure and assembly. For example, some assemblies have complex structures containing too many parts, resulting in high production costs and low assembly efficiency. Other assemblies require specialized tooling equipment during assembly, increasing production line investment and process complexity. Furthermore, complex structures may lead to risks of part confusion, incorrect assembly, or omissions, affecting the final product quality and reliability. Some designs require additional post-assembly processing steps, such as riveting, welding, or screw tightening, further reducing production efficiency. Utility Model Content

[0004] In order to solve the problems of complex structure, tooling dependence, error-proneness and low production efficiency of some existing moving contact assemblies, the purpose of this utility model is to provide a moving contact assembly.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a moving contact assembly, including a housing and a moving contact body, the moving contact body being rotatably installed in the housing, the moving contact body including a moving contact frame, a first moving piece, a second moving piece, a spring bracket, a spring body, and a cover plate, the first moving piece, the second moving piece, the spring bracket, the spring body, and the cover plate are all detachably installed in the moving contact frame, the middle part of the first moving piece and the second moving piece is located in the spring bracket, the spring body is installed in the spring bracket, the bottom end of the spring body is in contact with the upper surface of the second moving piece, and the lower surface of the cover plate is in contact with the top end of the spring bracket.

[0006] Preferably, the first movable piece and the second movable piece are symmetrical parts with identical shape and structure, and the first movable piece and the second movable piece are mirror-distributed and installed in the movable contact frame. The movable contact frame has a through-type second slot and a first slot distributed vertically, and the first movable piece and the second movable piece can be inserted into the first slot and the second slot respectively. The top of the inside of the first slot and the bottom of the inside of the second slot are both provided with conical guide grooves. Limiting blocks are fixedly installed on the upper surface of the first movable piece and the middle of the lower surface of the second movable piece, and the limiting blocks can slide along the corresponding guide grooves. The movable contact frame has a through-type limiting groove, and the limiting blocks on the first movable piece and the second movable piece can be inserted into the limiting groove.

[0007] Preferably, the moving contact frame has a support groove inside, and the spring support can be inserted into the support groove. The top two sides of the moving contact frame have slots, and the cover plate has elastic buckles fixedly installed on both sides, which can be engaged in the corresponding slots. Compared with the prior art, the beneficial effects of this utility model are as follows: 1. In this utility model, the moving contact assembly consists only of core parts such as the moving contact frame, the first moving piece, the second moving piece, the spring bracket, the spring body, and the cover plate. The structure is very simple, the production cost is low, and the entire assembly process can be completed manually. This completely eliminates the dependence on expensive and complex special tooling, greatly reduces the construction cost of the production line, and also improves production efficiency. 2. In this utility model, due to the small number of parts and the clear logic of the assembly steps, the possibility of parts being confused, installed backwards, or omitted is fundamentally avoided, which greatly improves the consistency and reliability of the product. Attached Figure Description

[0008] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0009] Figure 1 This is a schematic diagram of the overall double-sided structure of this utility model; Figure 2 This is a schematic diagram of the internal structure of the outer shell of this utility model; Figure 3 This is a schematic diagram of the moving contact body structure of this utility model; Figure 4 This is a schematic diagram of the exploded structure of the moving contact body of this utility model; Figure 5 This is a schematic cross-sectional view of the moving contact frame and spring support of this utility model; Figure 6 This is a cross-sectional view and internal structure diagram of the moving contact frame of this utility model; Figure 7 This is a schematic cross-sectional view of the moving contact frame of this utility model.

[0010] In the diagram: 1. Outer shell; 2. Moving contact body; 201. Moving contact frame; 2011. First slot; 2012. Second slot; 2013. Guide groove; 2014. Limiting groove; 2015. Slot; 2016. Support groove; 202. First moving piece; 2021. Limiting block; 203. Second moving piece; 204. Spring support; 205. Spring body; 206. Cover plate; 2061. Elastic buckle. Detailed Implementation

[0011] 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.

[0012] Example: Figure 1-7 As shown, this utility model provides a moving contact assembly, including a housing 1 and a moving contact body 2. The moving contact body 2 is rotatably mounted inside the housing 1. The moving contact body 2 includes a moving contact frame 201, a first moving piece 202, a second moving piece 203, a spring bracket 204, a spring body 205, and a cover plate 206. The first moving piece 202, the second moving piece 203, the spring bracket 204, the spring body 205, and the cover plate 206 are all detachably mounted inside the moving contact frame 201. The middle parts of the first moving piece 202 and the second moving piece 203 are located inside the spring bracket 204. The spring body 205 is mounted inside the spring bracket 204, and the bottom end of the spring body 205 contacts the upper surface of the second moving piece 203. The lower surface of the cover plate 206 contacts the top of the spring bracket 204. The moving contact body 2 consists of a moving contact frame 201, a first moving piece 202, a second moving piece 203, a spring bracket 204, a spring body 205, and a cover plate 206. The moving contact frame 201 is the base of the moving contact body 2 and is usually made of high-strength engineering plastic or metal. It is rotatably mounted inside the housing 1. The interior of the moving contact frame 201 is hollow and is used to install components such as the spring bracket 204 and the spring body 205. The spring body 205 is a compression spring and is installed inside the spring bracket 204. The first moving piece 202 and the second moving piece 203 are usually made of copper or copper alloy with good conductivity. The cover plate 206 is detachably mounted on the top of the moving contact frame 201, so that the moving contact frame 201 forms a closed structure to prevent internal parts from falling off.

[0013] The first movable piece 202 and the second movable piece 203 are symmetrical parts with identical shape and structure, and are mirror-distributed and installed in the movable contact frame 201. The movable contact frame 201 has a vertically distributed through-type second slot 2012 and a first slot 2011, and the first movable piece 202 and the second movable piece 203 can be respectively inserted into the first slot 2011 and the second slot 2012. A tapered guide groove 2013 is provided at the top of the inside of the first slot 2011 and the bottom of the inside of the second slot 2012. Limiting blocks 2021 are fixedly installed on the upper surface of the first moving piece 202 and the middle of the lower surface of the second moving piece 203. The limiting blocks 2021 can slide along the corresponding guide groove 2013. A through-type limiting groove 2014 is provided inside the moving contact frame 201, and the limiting blocks 2021 on the first moving piece 202 and the second moving piece 203 can be inserted into the limiting groove 2014. First, the spring body 205 can be installed in the spring bracket 204, and then the spring bracket 204 can be placed into the moving contact frame 201. Next, the second moving piece 203 is moved along the limiting block 2021 on its lower surface. The corresponding guide groove 2013 is inserted into the second slot 2012, causing the second movable piece 203 to pass through the spring bracket 204, and the bottom end of the spring body 205 to contact the middle of the upper surface of the second movable piece 203. The elastic force of the spring body 205 pushes the spring bracket 204 upward and pushes the second movable piece 203 downward, causing the limiting block 2021 on the lower surface of the second movable piece 203 to insert into the limiting groove 2014 inside the movable contact frame 201, limiting the second movable piece 203. Then, the spring bracket 204 is pressed, and the spring body 205 is compressed, causing the spring bracket 2012 to... 04. Leave space at the bottom, and then insert the first moving piece 202 into the first slot 2011 through the limiting block 2021 on its upper surface along the corresponding guide groove 2013, so that the first moving piece 202 passes through the spring bracket 204. Then, release the pressed spring bracket 204, and use the elastic force of the spring body 205 to push the spring bracket 204 upward. The spring bracket 204 drives the first moving piece 202 to rise, so that the limiting block 2021 on the upper surface of the first moving piece 202 is inserted into the limiting groove 2014 inside the moving contact frame 201, thereby limiting the first moving piece 202.

[0014] The movable contact frame 201 has a support groove 2016 inside, and the spring support 204 can be inserted into the support groove 2016, so that the spring support 204 is inserted into the support groove 2016 inside the movable contact frame 201, and the spring support 204 can slide and rise along the support groove 2016.

[0015] The moving contact frame 201 has slots 2015 on both sides of its inner top. The cover plate 206 has elastic buckles 2061 fixedly installed on both sides. The elastic buckles 2061 can be locked in the corresponding slots 2015. The cover plate 206 can be locked into the slots 2015 on the top of the moving contact frame 201 through the elastic buckles 2061 on both sides, so that the moving contact frame 201 forms a closed structure to prevent internal parts from falling off.

[0016] Assembly steps of the moving contact assembly: First, install the spring body 205 inside the spring bracket 204, and insert the spring bracket 204 into the bracket slot 2016 inside the moving contact frame 201. Next, insert the second moving piece 203 into the second slot 2012 along the corresponding guide groove 2013 through the limiting block 2021 on its lower surface, so that the second moving piece 203 passes through the spring bracket 204 and the bottom end of the spring body 205 contacts the middle of the upper surface of the second moving piece 203. The elastic force of the spring body 205 pushes the spring bracket 204 upward and pushes the second moving piece 203 downward, so that the limiting block 2021 on the lower surface of the second moving piece 203 inserts into the limiting groove 2014 inside the moving contact frame 201, limiting the second moving piece 203. Then, press the spring bracket 204 and compress the spring body. 205. Make space at the bottom of the spring bracket 204, and then insert the first moving piece 202 into the first slot 2011 through the limiting block 2021 on its upper surface along the corresponding guide groove 2013, so that the first moving piece 202 passes through the spring bracket 204. Then release the pressed spring bracket 204, and use the elastic force of the spring body 205 to push the spring bracket 204 upward. The spring bracket 204 drives the first moving piece 202 to rise, so that the limiting block 2021 on the upper surface of the first moving piece 202 is inserted into the limiting groove 2014 inside the moving contact frame 201 to limit the first moving piece 202. Finally, the cover plate 206 is inserted into the slot 2015 at the top of the moving contact frame 201 through the elastic buckles 2061 on both sides, so that the moving contact frame 201 forms a closed structure to prevent the internal parts from falling off.

[0017] All standard parts used in this invention can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0018] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A moving contact assembly, comprising a housing (1) and a moving contact body (2), characterized in that: The moving contact body (2) is rotatably installed inside the outer casing (1). The moving contact body (2) includes a moving contact frame (201), a first moving piece (202), a second moving piece (203), a spring bracket (204), a spring body (205), and a cover plate (206). The first moving piece (202), the second moving piece (203), the spring bracket (204), the spring body (205), and the cover plate (206) are all detachably installed inside the moving contact frame (201). The middle parts of the first moving piece (202) and the second moving piece (203) are located inside the spring bracket (204). The spring body (205) is installed inside the spring bracket (204). The bottom end of the spring body (205) contacts the upper surface of the second moving piece (203), and the lower surface of the cover plate (206) contacts the top end of the spring bracket (204).

2. The moving contact assembly as described in claim 1, characterized in that, The first moving piece (202) and the second moving piece (203) are symmetrical parts with the same shape and structure, and the first moving piece (202) and the second moving piece (203) are mirror images of each other and installed in the moving contact frame (201).

3. The moving contact assembly as described in claim 1, characterized in that, The movable contact frame (201) has a through-type second slot (2012) and a first slot (2011) distributed vertically, and the first movable piece (202) and the second movable piece (203) can be inserted into the first slot (2011) and the second slot (2012) respectively.

4. The moving contact assembly as described in claim 3, characterized in that, A tapered guide groove (2013) is provided at the top inner end of the first slot (2011) and the bottom inner end of the second slot (2012).

5. The moving contact assembly as described in claim 4, characterized in that, Limiting blocks (2021) are fixedly installed on the upper surface of the first moving piece (202) and the middle of the lower surface of the second moving piece (203), and the limiting blocks (2021) can slide along the corresponding guide groove (2013).

6. The moving contact assembly as described in claim 5, characterized in that, The movable contact frame (201) has a through-type limiting groove (2014) inside, and the limiting blocks (2021) on the first movable piece (202) and the second movable piece (203) can be inserted into the limiting groove (2014).

7. The moving contact assembly as claimed in claim 1, characterized in that, The movable contact frame (201) has a support groove (2016) inside, and the spring support (204) can be inserted into the support groove (2016).

8. The moving contact assembly as claimed in claim 1, characterized in that, The moving contact frame (201) has slots (2015) on both sides of its inner top end, and elastic buckles (2061) are fixedly installed on both sides of the cover plate (206), and the elastic buckles (2061) can be locked in the corresponding slots (2015).

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