Auxiliary switch

Abstract

The utility model provides an auxiliary switch, which belongs to the electrical field and comprises a shell bending plate and an operating mechanism, a first switch assembly and a second switch assembly are sequentially arranged above the operating mechanism, the first switch assembly comprises a first push rod, a first moving contact, a first normally-closed contact and a first normally-open contact, and the second switch assembly comprises a second push rod and a second moving contact. The second switch assembly comprises a second push rod, a second moving contact, a second normally-closed contact and a second normally-open contact, the second push rod and the first push rod are coaxially arranged, the cam drives the first push rod to move in the height direction, and the first push rod drives the second push rod to move in the height direction; the switch has a switch-on state in which the first moving contact is connected with the first normally-closed contact and the second moving contact is connected with the second normally-closed contact, and a switch-off state in which the first moving contact is connected with the first normally-open contact and the second moving contact is connected with the second normally-open contact. The auxiliary switch is compact in structure, small in size, vertical in structure, convenient to assemble and high in production efficiency, and the transverse width of the auxiliary switch is particularly reduced.

Description

Technical Field

[0001] This utility model relates to the field of electrical technology, specifically to an auxiliary switch. Background Technology

[0002] In electrical systems, reliable control and monitoring are crucial. Auxiliary switches, as key electrical components, are widely used in numerous fields. From industrial automated production lines to power transmission and distribution systems, and various smart home devices, auxiliary switches play an indispensable role.

[0003] Early electrical systems had relatively simple structures, and the design of auxiliary switches at that time was quite basic, mainly responsible for simple indication of the status of the main switch and some basic control functions. With the rapid advancement of industrialization, the scale of power systems has continued to expand, and their complexity has increased exponentially, requiring continuous evolution and updates to auxiliary switches. However, existing auxiliary switches still have some drawbacks. For example, existing multi-channel auxiliary switches are relatively large, especially when lateral installation space is limited, making the installation of auxiliary switches a problem that urgently needs to be solved. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings and deficiencies of the existing technology and to provide an auxiliary switch.

[0005] The technical solution adopted by this utility model is as follows: An auxiliary switch includes a housing bend plate and an operating mechanism. The housing bend plate includes a pair of spaced-apart first mounting plates and second mounting plates. The operating mechanism is disposed between the first mounting plates and the second mounting plates, and the operating mechanism includes a synchronously rotating shaft and a cam. A plurality of first switch assemblies and a plurality of second switch assemblies are sequentially disposed above the operating mechanism. The first switch assembly includes a first push rod, a first moving contact, a first normally closed contact, and a first normally open contact. The middle part of the first moving contact is connected to the first push rod. The first normally closed contact is disposed above the first normally open contact, and the end of the first moving contact away from the first push rod is located between the first normally closed contact and the first normally open contact.

[0006] The second switch assembly includes a second push rod, a second moving contact, a second normally closed contact, and a second normally open contact. The second push rod is coaxially arranged with the first push rod. The middle part of the second moving contact is connected to the second push rod. The second normally closed contact is located above the second normally open contact, and the end of the second moving contact away from the second push rod is located between the second normally closed contact and the second normally open contact.

[0007] The cam drives the first push rod to move along its height direction, and the first push rod drives the second push rod to move along its height direction, having a closed state where the first moving contact is connected to the first normally closed contact and the second moving contact is connected to the second normally closed contact, and an open state where the first moving contact is connected to the first normally open contact and the second moving contact is connected to the second normally open contact.

[0008] The auxiliary switch further includes two first fixing plates and two connecting rods. The two first fixing plates are symmetrically arranged on both sides of the outer shell curved plate, and the two ends of the first fixing plates are respectively connected to a first mounting plate and a second mounting plate. The connecting rods are arranged below the first fixing plates and their two ends are respectively connected to the first mounting plate and the second mounting plate. The first mounting plate, the second mounting plate, the first fixing plate, and the connecting rods enclose a first mounting cavity. Each end of the two first fixing plates is provided with a connecting post. A second fixing plate is arranged above the first fixing plate, and the two ends of the second fixing plate are respectively connected to the corresponding connecting posts below it. Two connecting plates are symmetrically arranged between the two second fixing plates. The upper part of the first mounting plate, the upper part of the second mounting plate, the first fixing plate, the connecting post, the second fixing plate, and the connecting plate enclose a second mounting cavity. The second fixing plate and the connecting plate enclose a mounting groove. The first mounting cavity, the second mounting cavity, and the mounting groove are arranged sequentially from bottom to top along the height direction of the outer shell curved plate. The operating mechanism is arranged in the first mounting cavity. A plurality of first switch components are evenly spaced in the second mounting cavity along the length direction of the first fixing plate. A plurality of second switch components are evenly spaced in the mounting groove along the length direction of the second fixing plate.

[0009] The first fixing plate includes a first fixing part and a first connecting part. The first connecting part is formed by bending the upper end of the first fixing part away from the outer shell bending plate. The first mounting plate and the second mounting plate are respectively provided with a first slot and a second slot. The two ends of the first fixing part are respectively disposed in the first slot and the second slot. The connecting post is disposed at both ends of the first connecting part.

[0010] The first slot is bent toward the second mounting plate to form a first connecting ear, and the second slot is bent toward the first mounting plate to form a second connecting ear. The two ends of the first fixing part are respectively connected to the first connecting ear and the second connecting ear.

[0011] The second fixing plate includes a second fixing part and a partition part. The partition part is formed by bending the second fixing part upward along the height direction of the outer shell bending plate. The two ends of the second fixing part are respectively connected to the corresponding connecting posts below it.

[0012] The first switch assembly further includes a first housing and a first cover plate, the first housing and the first cover plate forming a third mounting cavity, the first push rod, the first moving contact, the first normally closed contact and the first normally open contact being disposed in the third mounting cavity. The second switch assembly further includes a second housing and a second cover plate, the second housing and the second cover plate forming a fourth mounting cavity, the second push rod, the second moving contact, the second normally closed contact and the second normally open contact being disposed in the fourth mounting cavity.

[0013] The first outer shell has a first protruding plate at each end, the first cover plate is located between the first protruding plates and abuts against the first protruding plates, and the first protruding plate is connected to the first connecting part. The second outer shell has a second protruding plate at each end, the second cover plate is located between the second protruding plates and abuts against the second protruding plates, and the second protruding plate is connected to the second fixing part.

[0014] The first cover plate and the second cover plate are symmetrically provided with a first connector and a second connector at their upper and lower ends. The first shell and the second shell are symmetrically provided with a first through hole and a second through hole at their upper and lower ends. One end of the first connector is disposed in the first through hole, and one end of the second connector is disposed in the second through hole.

[0015] The second switch assembly is provided with a protective cover at its upper end. The two ends of the protective cover are bent towards the axial direction to form a snap-fit ​​plate. The second housing is provided with a snap-fit ​​block at its upper end. The snap-fit ​​plate abuts against the snap-fit ​​block.

[0016] Two limiting plates are spaced apart in the middle of the protective cover. A first step and a second step are provided inside the second outer shell. The first step and the second step face opposite directions. The two limiting plates are respectively disposed inside the first step and the second step.

[0017] The beneficial effects of this utility model are as follows:

[0018] 1. This utility model has a compact structure and small size, and is vertical in shape, which greatly reduces the horizontal width of the auxiliary switch;

[0019] 2. This utility model is easy to assemble and improves production efficiency. Attached Figure Description

[0020] 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, obtaining other drawings based on these drawings without creative effort still falls within the scope of this utility model.

[0021] Figure 1 This is a schematic diagram of the present utility model. Figure 1;

[0022] Figure 2 This is a schematic diagram of the present utility model. Figure 2 ;

[0023] Figure 3 This is a schematic diagram of the present utility model. Figure 3 ;

[0024] Figure 4 This is a schematic diagram of the outer shell bending plate of this utility model;

[0025] Figure 5 This is a schematic diagram of the fixing plate of this utility model;

[0026] Figure 6 This is a schematic diagram of the first switch assembly of this utility model;

[0027] Figure 7 This is a schematic diagram of the first cover plate of this utility model;

[0028] Figure 8 This is a schematic diagram of the second outer shell of the present invention;

[0029] Figure 9 This is a schematic diagram of the protective cover of this utility model;

[0030] Figure 10 This is a schematic diagram of the second switch assembly of this utility model. Detailed Implementation

[0031] To make the objectives, technical solutions and advantages of this utility model clearer, the utility model will be described in further detail below with reference to the accompanying drawings.

[0032] It should be noted that all uses of "first" and "second" in the embodiments of this utility model are for the purpose of distinguishing two entities or parameters with the same name but different names. It is clear that "first" and "second" are only for the convenience of expression and should not be construed as limiting the embodiments of this utility model. Subsequent embodiments will not explain this in detail.

[0033] The directional and positional terms used in this utility model, such as "up," "down," "front," "back," "left," "right," "inner," "outer," "top," "bottom," and "side," are merely for reference to the accompanying drawings. Therefore, the directional and positional terms used are for the purpose of explaining and understanding this utility model, and not for limiting the scope of protection of this utility model.

[0034] Example 1:

[0035] like Figures 1 to 10 The image shown is one embodiment of this utility model:

[0036] An auxiliary switch includes a housing bend plate and an operating mechanism 2. The housing bend plate includes a pair of spaced-apart first mounting plates 11 and second mounting plates 12. The operating mechanism 2 is disposed between the first mounting plates 11 and second mounting plates 12, and includes a synchronously rotating shaft 21 and a cam 22. A plurality of first switch assemblies 81 and a plurality of second switch assemblies 82 are sequentially disposed above the operating mechanism 2. The first switch assembly 81 includes a first push rod 811, a first moving contact 812, a first normally closed contact 813, and a first normally open contact 814. The first moving contact 812 is connected to the first push rod 811 at its middle part. The first normally closed contact 813 is disposed above the first normally open contact 814, and the end of the first moving contact 812 away from the first push rod 811 is located between the first normally closed contact 813 and the first normally open contact 814.

[0037] The second switch assembly 82 includes a second push rod 821, a second moving contact 822, a second normally closed contact 823, and a second normally open contact 824. The second push rod 821 is coaxially arranged with the first push rod 811. The middle part of the second moving contact 822 is connected to the second push rod 821. The second normally closed contact 823 is disposed above the second normally open contact 824, and the end of the second moving contact 822 away from the second push rod 821 is located between the second normally closed contact 823 and the second normally open contact 824.

[0038] The cam 22 drives the first push rod 811 to move along its height direction, and the first push rod 811 drives the second push rod 821 to move along its height direction, having a closed state where the first moving contact 812 is connected to the first normally closed contact 813 and the second moving contact 822 is connected to the second normally closed contact 823, and an open state where the first moving contact 812 is connected to the first normally open contact 814 and the second moving contact 822 is connected to the second normally open contact 824.

[0039] To assemble the operating mechanism 2, the first switch assembly 81, and the second switch assembly 82, the auxiliary switch further includes two first fixing plates 3 and two connecting rods 4. The two first fixing plates 3 are symmetrically arranged on both sides of the outer casing curved plate, and both ends of the first fixing plates 3 are connected to the first mounting plate 11 and the second mounting plate 12, respectively. The connecting rods 4 are located below the first fixing plates 3, and both ends are connected to the first mounting plate 11 and the second mounting plate 12, respectively. The first mounting plate 11, the second mounting plate 12, the first fixing plates 3, and the connecting rods 4 together form a first mounting cavity. Connecting posts 5 are provided at both ends of the two first fixing plates 3. A second fixing plate 6 is provided above the first fixing plates 3. The first mounting plate 11, the second mounting plate 12, the first mounting plate 3, the connecting post 5, the second fixing plate 6, and the connecting plate 7 are symmetrically arranged between the two second fixing plates 6. The upper part of the first mounting plate 11, the upper part of the second mounting plate 12, the first fixing plate 3, the connecting post 5, the second fixing plate 6, and the connecting plate 7 enclose a second mounting cavity. The second fixing plate 6 and the connecting plate 7 enclose a mounting groove. The first mounting cavity, the second mounting cavity, and the mounting groove are arranged sequentially from bottom to top along the height direction of the outer shell bending plate. The operating mechanism 2 is disposed in the first mounting cavity. A plurality of first switch assemblies 81 are evenly spaced along the length direction of the first fixing plate 3 in the second mounting cavity, and a plurality of second switch assemblies 82 are evenly spaced along the length direction of the second fixing plate 6 in the mounting groove. Through the above arrangement, the auxiliary switch structure is compact and vertical, which greatly reduces the volume of the auxiliary switch, especially the lateral width of the auxiliary switch.

[0040] Specifically, the first fixing plate 3 includes a first fixing part 31 and a first connecting part 32. The first connecting part 32 is formed by bending the upper end of the first fixing part 31 away from the outer shell bending plate. The first mounting plate 11 and the second mounting plate 12 are respectively provided with a first slot 111 and a second slot 121. The two ends of the first fixing part 31 are respectively disposed in the first slot 111 and the second slot 121. The connecting post 5 is disposed at both ends of the first connecting part 32.

[0041] The first fixing plate 3 is connected to the first mounting plate 11 and the second mounting plate 12 in the thickness direction. In order to facilitate the connection between the two and improve the reliability of the connection, the first slot 111 is bent towards the second mounting plate 12 to form the first connecting ear 1111, and the second slot 121 is bent towards the first mounting plate 11 to form the second connecting ear 1211. The two ends of the first fixing part 31 are respectively connected to the first connecting ear 1111 and the second connecting ear 1211.

[0042] Specifically, the second fixing plate 6 includes a second fixing part 61 and a partition part 62. The partition part 62 is formed by bending the second fixing part 61 upward along the height direction of the outer shell bending plate. The two ends of the second fixing part 61 are respectively connected to the corresponding connecting posts 5 below it.

[0043] Specifically, the first switch assembly 81 further includes a first housing 91 and a first cover plate 92, which together form a third mounting cavity. The first push rod 811, the first moving contact 812, the first normally closed contact 813, and the first normally open contact 814 are disposed in the third mounting cavity. The second switch assembly 82 further includes a second housing 93 and a second cover plate 94, which together form a fourth mounting cavity. The second push rod 821, the second moving contact 822, the second normally closed contact 823, and the second normally open contact 824 are disposed in the fourth mounting cavity.

[0044] To facilitate the mutual positioning and assembly of the first outer shell 91 and the first cover plate 92, and the second outer shell 93 and the second cover plate 94, the first outer shell 91 is provided with first protruding plates 911 at both ends, the first cover plate 92 is located between the first protruding plates 911 and abuts against the first protruding plates 911, and the first protruding plates 911 are connected to the first connecting part 32. The second outer shell 93 is provided with second protruding plates 931 at both ends, the second cover plate 94 is located between the second protruding plates 931 and abuts against the second protruding plates 931, and the second protruding plates 931 are connected to the second fixing part 61. Specifically, the upper and lower ends of the first cover plate 92 and the second cover plate 94 are symmetrically provided with first connecting members 921 and second connecting members 922, and the upper and lower ends of the first outer shell 91 and the second outer shell 93 are symmetrically provided with first through holes and second through holes. One end of the first connecting member 921 is provided in the first through hole, and one end of the second connecting member 922 is provided in the second through hole.

[0045] To protect the second switch assembly 82, a protective cover 10 is provided on the upper end of the second switch assembly 82. The two ends of the protective cover 10 are bent in the axial direction to form a snap-fit ​​plate 101. A snap-fit ​​block 932 is provided on the upper end of the second housing 93. The snap-fit ​​plate 101 abuts against the snap-fit ​​block 932.

[0046] To prevent the second outer shell 93 and the second cover plate 94 from sliding relative to each other and causing misalignment, two limiting plates 102 are provided at intervals in the middle of the protective cover 10. A first step 933 and a second step 934 are provided inside the second outer shell 93. The first step 933 and the second step 934 face opposite directions. The two limiting plates 102 are respectively provided inside the first step 933 and the second step 934.

[0047] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Therefore, any equivalent variations made in accordance with the claims of the present utility model shall still fall within the scope of the present utility model.

Claims

1. An auxiliary switch, comprising a housing bend plate and an operating mechanism (2), wherein the housing bend plate comprises a pair of spaced-apart first mounting plates (11) and second mounting plates (12), the operating mechanism (2) is disposed between the first mounting plates (11) and the second mounting plates (12), and the operating mechanism (2) comprises a synchronously rotating shaft (21) and a cam (22), characterized in that, The operating mechanism (2) is provided with a plurality of first switch assemblies (81) and a plurality of second switch assemblies (82) in sequence above it. The first switch assembly (81) includes a first push rod (811), a first moving contact (812), a first normally closed contact (813) and a first normally open contact (814). The first moving contact (812) is connected to the first push rod (811) in the middle. The first normally closed contact (813) is located above the first normally open contact (814). The end of the first moving contact (812) away from the first push rod (811) is located between the first normally closed contact (813) and the first normally open contact (814). The second switch assembly (82) includes a second push rod (821), a second moving contact (822), a second normally closed contact (823), and a second normally open contact (824). The second push rod (821) is coaxially arranged with the first push rod (811). The middle part of the second moving contact (822) is connected to the second push rod (821). The second normally closed contact (823) is disposed above the second normally open contact (824), and the end of the second moving contact (822) away from the second push rod (821) is located between the second normally closed contact (823) and the second normally open contact (824). The cam (22) drives the first push rod (811) to move along its height direction, and the first push rod (811) drives the second push rod (821) to move along its height direction. It has a closed state in which the first moving contact (812) is connected to the first normally closed contact (813) and the second moving contact (822) is connected to the second normally closed contact (823), and an open state in which the first moving contact (812) is connected to the first normally open contact (814) and the second moving contact (822) is connected to the second normally open contact (824).

2. An auxiliary switch according to claim 1, characterized in that, It also includes two first fixing plates (3) and two connecting rods (4). The two first fixing plates (3) are symmetrically arranged on both sides of the outer shell curved plate, and the two ends of the first fixing plates (3) are respectively connected to the first mounting plate (11) and the second mounting plate (12). The connecting rods (4) are arranged below the first fixing plates (3) and their two ends are respectively connected to the first mounting plate (11) and the second mounting plate (12). The first mounting plate (11), the second mounting plate (12), the first fixing plate (3) and the connecting rods (4) form a first mounting cavity. Each of the two first fixing plates (3) is provided with a connecting post (5) at both ends. A second fixing plate (6) is provided above the first fixing plate (3), and the two ends of the second fixing plate (6) are respectively connected to the corresponding connecting post below it. 5) Two connecting plates (7) are symmetrically arranged between the two second fixing plates (6). The upper part of the first mounting plate (11), the upper part of the second mounting plate (12), the first fixing plate (3), the connecting column (5), the second fixing plate (6) and the connecting plate (7) enclose to form a second mounting cavity. The second fixing plate (6) and the connecting plate (7) enclose to form a mounting groove. The first mounting cavity, the second mounting cavity and the mounting groove are arranged sequentially from bottom to top along the height direction of the outer shell bending plate. The operating mechanism (2) is arranged in the first mounting cavity. A number of first switch assemblies (81) are evenly spaced in the second mounting cavity along the length direction of the first fixing plate (3). A number of second switch assemblies (82) are evenly spaced in the mounting groove along the length direction of the second fixing plate (6).

3. An auxiliary switch according to claim 2, characterized in that, The first fixing plate (3) includes a first fixing part (31) and a first connecting part (32). The first connecting part (32) is formed by bending the upper end of the first fixing part (31) away from the outer shell bending plate. The first mounting plate (11) and the second mounting plate (12) are respectively provided with a first slot (111) and a second slot (121). The two ends of the first fixing part (31) are respectively provided in the first slot (111) and the second slot (121). The connecting post (5) is provided at both ends of the first connecting part (32).

4. An auxiliary switch according to claim 3, characterized in that, The first slot (111) is bent toward the second mounting plate (12) to form a first connecting ear (1111), and the second slot (121) is bent toward the first mounting plate (11) to form a second connecting ear (1211). The two ends of the first fixing part (31) are respectively connected to the first connecting ear (1111) and the second connecting ear (1211).

5. An auxiliary switch according to claim 4, characterized in that, The second fixing plate (6) includes a second fixing part (61) and a partition part (62). The partition part (62) is formed by bending the second fixing part (61) upward along the height direction of the outer shell bending plate. The two ends of the second fixing part (61) are respectively connected to the corresponding connecting posts (5) below it.

6. An auxiliary switch according to claim 5, characterized in that, The first switch assembly (81) further includes a first housing (91) and a first cover plate (92), the first housing (91) and the first cover plate (92) enclose a third mounting cavity, the first push rod (811), the first moving contact (812), the first normally closed contact (813) and the first normally open contact (814) are disposed in the third mounting cavity. The second switch assembly (82) further includes a second housing (93) and a second cover plate (94), the second housing (93) and the second cover plate (94) enclose a fourth mounting cavity, the second push rod (821), the second moving contact (822), the second normally closed contact (823) and the second normally open contact (824) are disposed in the fourth mounting cavity.

7. An auxiliary switch according to claim 6, characterized in that, The first outer shell (91) has a first protruding plate (911) at both ends, the first cover plate (92) is located between the first protruding plates (911) and abuts against the first protruding plates (911), the first protruding plates (911) are connected to the first connecting part (32), the second outer shell (93) has a second protruding plate (931) at both ends, the second cover plate (94) is located between the second protruding plates (931) and abuts against the second protruding plates (931), the second protruding plates (931) are connected to the second fixing part (61).

8. An auxiliary switch according to claim 7, characterized in that, The first cover plate (92) and the second cover plate (94) are symmetrically provided with a first connector (921) and a second connector (922) at their upper and lower ends. The first outer shell (91) and the second outer shell (93) are symmetrically provided with a first through hole and a second through hole at their upper and lower ends. One end of the first connector (921) is located in the first through hole, and one end of the second connector (922) is located in the second through hole.

9. An auxiliary switch according to claim 8, characterized in that, The second switch assembly (82) is provided with a protective cover (10) at its upper end. The two ends of the protective cover (10) are bent in the axial direction to form a snap-fit ​​plate (101). The second outer shell (93) is provided with a snap-fit ​​block (932) at its upper end. The snap-fit ​​plate (101) abuts against the snap-fit ​​block (932).

10. An auxiliary switch according to claim 9, characterized in that, The protective cover (10) has two limiting plates (102) spaced apart in the middle. The second outer shell (93) has a first step (933) and a second step (934) inside. The first step (933) and the second step (934) face opposite directions. The two limiting plates (102) are respectively located inside the first step (933) and the second step (934).

Images