A multifunctional contactor protective cover

Abstract

The present invention discloses a multifunctional contactor protective cover, which relates to the technical field of high and medium voltage electrical equipment. The multifunctional contactor protective cover comprises a main body, wherein a control circuit function expansion module fixing structure is arranged inside the main body, a structure adjustment device is arranged on the outer surface of the main body, arc isolation plates are fixedly connected on both sides of the main body, and accessory storage rooms are provided between the arc isolation plates and the front and back sides of the main body, two first main circuit expansion function module fixing structures are symmetrically provided on the upper surface of the main body, second main circuit expansion function module fixing structures are provided on both sides of the main body and the two arc isolation plates, product function expansion adjustment windows are provided on the front and back sides of the main body, and a hanging device is fixedly connected on the outer surface of the arc isolation plate. The multifunctional contactor protective cover can make the derived products have the characteristics of compact structure, small size and excellent performance, and can also facilitate the functional expansion of the control circuit and main circuit of the contactor with various wiring types.

Description

Technical Field

[0001] The invention relates to the technical field of high and medium voltage electrical equipment, in particular to a multifunctional contactor protective cover. Background Art

[0002] At present, most of the contactor shells produced by the domestic low-voltage electrical appliance industry have built-in protection functions. However, in order to realize the protection function of the contact system of the contactor itself and meet the necessary electrical performance requirements, most of the shells have simple structures and single functions, and the contactor has poor scalability.

[0003] Most of the domestic small current contactors used in the low voltage electrical field require interlocking, dual power supply control, star-delta control and other multi-functions or products with multiple wiring types. Contactors with a single function and a single wiring form can hardly meet the expansion requirements of applications in multiple fields. Therefore, we designed a contactor with protection function and multiple expansion functions. Summary of the invention

[0004] 1. Technical issues to be resolved

[0005] In view of the deficiencies of the prior art, the present invention discloses a multifunctional contactor protective cover to solve the problems raised in the above background technology.

[0006] (II) Technical solution

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: a multifunctional contactor protective cover, including a main body, a control circuit function expansion module fixing structure is arranged inside the main body, a structural adjustment device is arranged on the outer surface of the main body, and arc isolation plates are fixedly connected on both sides of the main body, and accessory storage rooms are opened between the arc isolation plates and the front and back sides of the main body, two first main circuit expansion function module fixing structures are symmetrically opened on the upper surface of the main body, second main circuit expansion function module fixing structures are opened on both sides of the main body and the two arc isolation plates, product function expansion adjustment windows are opened on the front and back sides of the main body, and a hanging device is fixedly connected to the outer surface of the arc isolation plate.

[0008] Preferably, the control loop function expansion module fixing structure includes four notches and four bosses, the four notches are symmetrically opened on the top of the inner wall of the main body, the bosses are fixedly connected to the inner walls of the notches, and three limiting walls are opened in the notches.

[0009] Preferably, the structure adjustment device comprises four adjustment blocks, and the four adjustment blocks are symmetrically arranged on the front and back sides of the main body.

[0010] Preferably, a cavity is provided between the upper and lower ends of the adjustment block and the main body, and a first "V"-shaped groove is provided in the cavity, a second "V"-shaped groove is provided between one side of the adjustment block and the main body, and thin ribs are fixedly connected to the inner walls of the first "V"-shaped groove and the inner walls of the second "V"-shaped groove, and "V"-shaped adjustment grooves are formed between the first "V"-shaped groove and the thin ribs and between the second "V"-shaped groove and the thin ribs.

[0011] Preferably, the hanging device comprises two hooks and two fixing blocks, and the hooks and the fixing blocks are fixedly connected to the outer surface of the arc isolation plate.

[0012] Preferably, the first main circuit expansion function module fixing structure includes two hanging grooves and two "V"-shaped hanging grooves, the hanging grooves are opened on the upper surface of the main body, the "V"-shaped hanging grooves are opened on the outer surface of the fixed block, and a fixing platform is fixedly connected to the inner wall of the hanging groove.

[0013] Preferably, the second main circuit expansion function module fixing structure includes a first window and a second window, the first window is opened on the outer surface of the arc isolation plate, and the second window is opened on the side wall of the main body.

[0014] Preferably, a dust cover fixing wall is fixedly connected to the inner wall of the product function expansion adjustment window, and the dust cover fixing wall is provided with a dust cover fixing groove.

[0015] Preferably, a plurality of interphase insulating ribs are fixedly connected to the inner wall of the main body.

[0016] Preferably, four coil terminal clamping devices are provided on the inner wall of the main body.

[0017] Preferably, the front side of the main body 1 is provided with a water-shaped shape and a fading surface.

[0018] The present invention discloses a multifunctional contactor protective cover, which has the following beneficial effects:

[0019] 1. The multifunctional contactor protective cover is suitable for contactors with protection functions and multiple extended functions in the field of low-voltage electrical appliances. It can effectively improve the extended functions of the contactor, not only making the derived products have the characteristics of compact structure, small size and excellent performance, but also facilitating the functional expansion of the control circuit and main circuit of the contactor with various wiring types.

[0020] 2. The multifunctional contactor protective cover and the control circuit function expansion module fixed structure are designed at the top of the protective cover body, and are composed of four notches and four bosses, that is, different control circuit function expansion modules only need to have the same fixed connection device with this device, which is more conducive to the expansion design of the control circuit of the contactor, including designing a variety of wiring forms for the control circuit, or adding a function expansion module interface to the control circuit and designing related signal detection devices for the control circuit. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the front structure of the present invention;

[0022] Figure 2 It is a schematic diagram of the back structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the internal structure of the main body of the present invention;

[0024] Figure 4 This is a schematic diagram of the fixed structure of the control loop function expansion module of the present invention;

[0025] Figure 5 It is a schematic diagram of the structure adjustment device of the present invention;

[0026] Figure 6 This is a schematic diagram of the fixed structure of the first main circuit expansion function module of the present invention;

[0027] Figure 7 This is a schematic diagram of the fixed structure of the second main circuit expansion function module of the present invention.

[0028] Figure 8 It is a schematic diagram of the front structure of the main body of the present invention;

[0029] Fig. 9 It is a cross-sectional view of the structure adjustment device of the present invention;

[0030] Fig.10 It is a cross-sectional view of the structure adjustment device of the present invention.

[0031] In the figure: 1. main body; 2. control circuit function expansion module fixing structure; 3. structure adjustment device; 4. accessory storage room; 5. first main circuit expansion function module fixing structure; 6. second main circuit expansion function module fixing structure; 7. product function expansion adjustment window; 8. hanging device; 9. interphase insulating ribs; 10. arc isolation plate; 11. coil terminal clamping device; 12. notch; 13. boss; 14. limit wall; 15. "V" type adjustment groove; 16. cavity; 17. thin ribs; 18. hanging groove; 19. fixed platform; 20. "V" type hanging groove; 21. first window; 22. second window; 23. dust cover fixing groove; 24. dust cover fixing wall; 25. hook; 26. water shape; 27. gradually disappearing surface; 28. adjustment block; 29. ​​first "V" type groove; 30. second "V" type groove. DETAILED DESCRIPTION

[0032] The embodiment of the present invention discloses a multifunctional contactor protective cover, such as Figure 1-10 As shown, it includes a main body 1, a control circuit function expansion module fixing structure 2 is arranged inside the main body 1, a structure adjustment device 3 is arranged on the outer surface of the main body 1, and arc isolation plates 10 are fixedly connected on both sides of the main body 1, and an accessory storage room 4 is opened between the arc isolation plate 10 and the front and back sides of the main body 1, two first main circuit expansion function module fixing structures 5 are symmetrically opened on the upper surface of the main body 1, second main circuit expansion function module fixing structures 6 are opened on both sides of the main body 1 and the two arc isolation plates 10, product function expansion adjustment windows 7 are opened on the front and back sides of the main body 1, and a hanging device 8 is fixedly connected on the outer surface of the arc isolation plate 10, and the arc generated at the moment of contactor switching is effectively blocked by the arc isolation plate 10, so that the contactor can achieve zero arcing, ensuring that the peripheral accessories, expansion modules and other electrical components of the contactor are not affected by the arc.

[0033] The control loop function expansion module fixing structure 2 includes four notches 12 and four bosses 13. The four notches 12 are symmetrically arranged at the top of the inner wall of the main body 1. The bosses 13 are fixedly connected to the inner wall of the notches 12, and three limiting walls 14 are arranged in the notches 12, which can effectively fix the control loop function expansion module at the top of the contactor firmly to the product body.

[0034] The structure adjustment device 3 includes four adjustment blocks 28 , and the four adjustment blocks 28 are symmetrically arranged on the front and back sides of the main body 1 .

[0035] A cavity 16 is provided between the upper and lower ends of the adjustment block 28 and the main body 1, and a first "V"-shaped groove 29 is provided in the cavity 16, a second "V"-shaped groove 30 is provided between one side of the adjustment block 28 and the main body 1, and thin ribs 17 are fixedly connected to the inner walls of the first "V"-shaped groove 29 and the inner walls of the second "V"-shaped groove 30, and "V"-shaped adjustment grooves 15 are formed between the first "V"-shaped groove 29 and the thin rib 17 and between the second "V"-shaped groove 30 and the thin rib 17. The three "V"-shaped adjustment grooves 15 can not only ensure that the product structure is not affected and beautiful, but also ensure that the product can be easily removed when accessories or functional modules are added and the product appearance is not affected. After the adjustment block 28 is broken off, it forms an accessory installation device together with the accessory storage room 4, so that the contactor has enough space to accommodate accessories, such as interlocking or dual power switching line bars, function expansion module components, etc., which can effectively reduce the volume of derived products, simplify the assembly process, and make the product more beautiful.

[0036] The hooking device 8 includes two hooks 25 and two fixing blocks. The hooks 25 and the fixing blocks are fixedly connected to the outer surface of the arc isolation plate 10, and can well connect the contactor contact system and the magnetic system together.

[0037] The first main circuit expansion function module fixing structure 5 includes two hanging grooves 18 and two "V"-shaped hanging grooves 20. The hanging groove 18 is arranged on the upper surface of the main body 1, and the "V"-shaped hanging groove 20 is arranged on the outer surface of the fixed block. A fixing platform 19 is fixedly connected to the inner wall of the hanging groove 18. This structure can realize the installation of expansion modules at both ends of the protective cover, such as a wiring frame type wiring seat, etc., so that the product has a strong expansion function.

[0038] The second main circuit extended function module fixing structure 6 includes a first window 21 and a second window 22. The first window 21 is opened on the outer surface of the arc isolation plate 10, and the second window 22 is opened on the side wall of the main body 1. It is possible to install extended modules at both ends of the protective cover, such as a ring terminal block, etc., to make the product's extended function stronger.

[0039] A dust cover fixing wall 24 is fixedly connected to the inner wall of the product function expansion adjustment window 7, and a dust cover fixing groove 23 is opened on the dust cover fixing wall 24. The product function expansion adjustment window 7 can realize the linkage control of the contactor side-mounted accessories and function expansion modules and the contactor internal contact bracket, thereby improving the expansion function of the product. At the same time, a dust cover fixing wall 24 is designed around each derivative product function expansion adjustment window 7, and the dust cover can be well fixed to the product through the dust cover fixing groove 23 on the dust cover fixing wall 24, so that the product has better dustproof performance, while ensuring that the product is not affected when accessories or function expansion modules are added on the side.

[0040] A plurality of interphase insulating ribs 9 are fixedly connected to the inner wall of the main body 1. The interphase insulating ribs 9 are composed of two vertical ribs with a stepped structure at a certain interval. This structure can cooperate well with the contactor body and ensure that there is sufficient electrical clearance or creepage distance between each phase within a limited volume. Compared with ordinary contactors, the phase spacing design of the contactor body can be effectively reduced, making the product structure compact and small in size.

[0041] Four coil terminal clamping devices 11 are arranged on the inner wall of the main body 1 .

[0042] The front of the main body 1 is provided with a water character shape 26 and a fading surface 27. The fading surface 27 is like a rising sun, and the words "TIANSHUI213" are designed below the fading surface 27, symbolizing that the enterprise is thriving. The water character shape 26 fully reflects the regional culture of "Tianhe filling water'.

[0043] Working principle: The four notches 12 and the four bosses 13 can effectively fix the control circuit function expansion module on the top of the contactor to the product firmly. The three "V"-shaped adjustment grooves 15 can not only ensure that the product structure is not affected and beautiful, but also ensure that the product can easily remove the adjustment block 28 when adding accessories or functional modules and the product appearance is not affected. After the adjustment block 28 is broken off, it forms an accessory installation device together with the accessory storage room 4, so that the contactor has enough space to accommodate accessories, such as interlocking or dual power switching line bars, functional expansion module components, etc., which can effectively reduce the volume of derived products, simplify the assembly process, and make the product more beautiful. The two hooks 25 can well connect the contactor contact system with the magnetic system. The two hanging grooves 18, the fixing platform 19 and the two "V"-shaped hanging grooves 20 can realize the installation of expansion modules at both ends of the protective cover, such as wiring frame type wiring seats, etc., so that the product has a strong expansion function. The first window 21 and the second window 22 can realize the installation of expansion modules at both ends of the protective cover, such as ring wiring seats, etc., so that the product has a stronger expansion function.

[0044] The product function expansion adjustment window 7 can realize the linkage control of the contactor side-mounted accessories and function expansion modules and the contactor internal contact bracket, thereby improving the expansion function of the product. At the same time, a dust cover fixing wall 24 is designed around the function expansion adjustment window 7 of each derivative product, and the dust cover can be well fixed to the product through the dust cover fixing groove 23 on the dust cover fixing wall 24, so that the product has good dustproof performance, and at the same time ensures that the product is not affected when accessories or function expansion modules are added to the side. The interphase insulating ribs 9 are composed of two vertical ribs with a stepped structure at a certain interval. This structure can cooperate well with the contactor body and ensure that there is sufficient electrical clearance or creepage distance between each phase within a limited volume. Compared with ordinary contactors, the phase spacing design of the contactor body can be effectively reduced, making the product structure compact and small in size.

[0045] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A multifunctional contactor protective cover, comprising a main body (1), characterized in that: A control circuit function expansion module fixing structure (2) is provided inside the main body (1), a structure adjustment device (3) is provided on the outer surface of the main body (1), arc isolation plates (10) are fixedly connected on both sides of the main body (1), and accessory storage rooms (4) are provided between the arc isolation plates (10) and the front and back sides of the main body (1), two first main circuit expansion function module fixing structures (5) are symmetrically provided on the upper surface of the main body (1), second main circuit expansion function module fixing structures (6) are provided on both sides of the main body (1) and the two arc isolation plates (10), product function expansion adjustment windows (7) are provided on the front and back sides of the main body (1), and a hanging device (8) is fixedly connected on the outer surface of the arc isolation plate (10); The control loop function expansion module fixing structure (2) comprises four notches (12) and four bosses (13), the four notches (12) being symmetrically arranged at the top of the inner wall of the main body (1), the bosses (13) being fixedly connected to the inner walls of the notches (12), and three limiting walls (14) being arranged in the notches (12); The first main circuit expansion function module fixing structure (5) comprises two hanging grooves (18) and two "V"-shaped hanging grooves (20), wherein the hanging grooves (18) are provided on the upper surface of the main body (1), the "V"-shaped hanging grooves (20) are provided on the outer surface of the fixing block, and a fixing platform (19) is fixedly connected to the inner wall of the hanging groove (18); The second main circuit expansion function module fixing structure (6) comprises a first window (21) and a second window (22), wherein the first window (21) is provided on the outer surface of the arc isolation plate (10), and the second window (22) is provided on the side wall of the main body (1).

2. A multifunctional contactor protective cover according to claim 1, characterized in that: The structural adjustment device (3) comprises four adjustment blocks (28), and the four adjustment blocks (28) are symmetrically arranged on the front and back sides of the main body (1).

3. A multifunctional contactor protective cover according to claim 2, characterized in that: A cavity (16) is provided between the upper and lower ends of the adjustment block (28) and the main body (1), and a first "V"-shaped groove (29) is provided in the cavity (16). A second "V"-shaped groove (30) is provided between one side of the adjustment block (28) and the main body (1), and thin ribs (17) are fixedly connected to the inner wall of the first "V"-shaped groove (29) and the inner wall of the second "V"-shaped groove (30), and a "V"-shaped adjustment groove (15) is formed between the first "V"-shaped groove (29) and the thin rib (17) and between the second "V"-shaped groove (30) and the thin rib (17).

4. The multifunctional contactor protective cover according to claim 1, characterized in that: The hooking device (8) comprises two hooks (25) and two fixing blocks, and the hooks (25) and the fixing blocks are fixedly connected to the outer surface of the arc isolation plate (10).

5. The multifunctional contactor protective cover according to claim 1, characterized in that: A dust cover fixing wall (24) is fixedly connected to the inner wall of the product function expansion adjustment window (7), and the dust cover fixing wall (24) is provided with a dust cover fixing groove (23).

6. The multifunctional contactor protective cover according to claim 1, characterized in that: A plurality of interphase insulating ribs (9) are fixedly connected to the inner wall of the main body (1).

7. The multifunctional contactor protective cover according to claim 1, characterized in that: Four coil terminal clamping devices (11) are arranged on the inner wall of the main body (1); and a water-shaped shape (26) and a fading surface (27) are arranged on the front side of the main body (1).

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