Contact support mechanism and contactor

Abstract

The utility model belongs to the technical field of low-voltage electric appliances, and discloses a contact support mechanism and a contactor. The contact support mechanism comprises a contact support and a sliding block, the sliding block comprises a mounting part and sliding parts, the contact support is detachably arranged on the mounting part, the at least two sliding parts are oppositely arranged on the two sides of the mounting part, and each sliding part is provided with at least one sliding rail extending in the moving direction of the contact support. The sliding rail is used for being in sliding connection with a contactor base. The two sliding parts are fixedly arranged on the two sides of the installation part respectively, each sliding part is provided with at least one sliding rail extending in the moving direction of the contact support, it can be guaranteed that the two sliding parts are stressed in a balanced mode and move synchronously, the moving process of the contact support is smoother, and the reliability of the contactor is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of low-voltage electrical appliances, in particular to a contact support mechanism and a contactor. Background Art

[0002] The contact support assembly of the contactor is assembled from a moving iron core, a contact support, a contact spring, a contact and a reset spring. When the coil is energized, the static iron core generates an electromagnetic attraction, causing the moving iron core to be attracted, driving the contact support assembly to move and achieve contact closure. When the coil is de-energized, the attraction between the moving and static iron cores disappears, and the reaction force of the reset spring causes the moving and static iron cores to separate and the contacts to open.

[0003] Therefore, a good contact support assembly is the primary condition to ensure the normal operation of the contactor. The contact support in the existing contact support assembly not only supports the contact, but also slides along the contactor base as a sliding part. After multiple opening and closing, the part where the contact support is slidably connected to the contactor base is severely worn, affecting the reliability of the contactor. After the contact support is worn, it needs to be replaced as a whole, which is costly. In order to solve the problem of wear resistance of the contact support, there is a prior art method of inserting a sliding part made of wear-resistant material on both sides of the contact support. However, the two sliding parts are respectively plugged into the contact support, which makes the assembly complicated. When one of the sliding parts is not assembled in place, it is easy to cause the forces on the two sliding parts to be unbalanced, resulting in jamming during the sliding process of the contact support, affecting the reliability of the contactor.

[0004] Therefore, there is an urgent need for a contactor contact support mechanism and a contactor to solve the problems in the prior art. Utility Model Content

[0005] The utility model aims to provide a contact support mechanism, which makes the contact support movement smoother and improves the reliability of the contactor.

[0006] To achieve this purpose, the utility model adopts the following technical solutions:

[0007] Contact support mechanism, including

[0008] Contact support;

[0009] The slider comprises a mounting portion and a sliding portion, wherein the contact support is detachably mounted on the mounting portion, at least two sliding portions are relatively arranged on two sides of the mounting portion, and each sliding portion is provided with at least one slide rail extending along the movement direction of the contact support, and the slide rail is used for sliding connection with the contactor base.

[0010] Optionally, a first boss is provided on the contact support, an assembly hole is provided on the mounting portion, and the first boss is inserted into the assembly hole.

[0011] Optionally, a mounting groove is provided on a side of the mounting portion away from the contact support, and the contact support mechanism further comprises a moving iron core, and the moving iron core is arranged in the mounting groove.

[0012] Optionally, a positioning plate is provided at one end of the assembly groove, and the positioning plate is used to position the end of the moving iron core.

[0013] Optionally, a positioning hole is provided on the mounting portion, a second boss is provided on the moving iron core, and the second boss is inserted into the positioning hole.

[0014] Optionally, the contact support mechanism also includes a connecting plate, the slider is provided with a first through hole, the contact support is provided with a second through hole, the moving iron core is provided with a third through hole, and the connecting plate is sequentially through the first through hole, the second through hole and the third through hole.

[0015] Optionally, the contact support mechanism further includes a buffer, which is disposed between the mounting portion and the contact support, and is used to buffer the impact force applied to the contact support.

[0016] Optionally, the buffer member includes a buffer spring, a fixing groove is provided on the mounting portion, a fixing boss is provided on the contact support, one end of the buffer spring is inserted into the fixing groove, and the other end abuts against the fixing boss.

[0017] Optionally, the contact support is made of a thermosetting material, and the slider is made of a thermoplastic material.

[0018] The utility model aims to provide a contactor, which can improve the stability and reliability of the contactor by adopting the above-mentioned contact support mechanism, thereby helping to ensure the stable operation of the electrical system.

[0019] To achieve this purpose, the utility model adopts the following technical solutions:

[0020] A contactor comprises the above-mentioned contact supporting mechanism.

[0021] Beneficial effects:

[0022] The contact support mechanism provided by the utility model includes a contact support and a slider, the slider includes a mounting portion and a sliding portion, the contact support is detachably mounted on the mounting portion, at least two sliding portions are relatively mounted on both sides of the mounting portion, each sliding portion is provided with at least one slide rail extending along the movement direction of the contact support, and the slide rail is used for sliding connection with the contactor base. By fixing the two sliding portions on both sides of the mounting portion respectively, and each sliding portion is provided with at least one slide rail extending along the movement direction of the contact support, it is possible to ensure that the two sliding portions are balanced in force and move synchronously, so that the movement process of the contact support is smoother, and the reliability of the contactor is improved.

[0023] The contactor provided by the utility model includes the above-mentioned contact support mechanism, which can improve the stability and reliability of the contactor and help to ensure the stable operation of the electrical system. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is an exploded view of the contact support mechanism provided by the utility model;

[0025] Figure 2 It is a structural schematic diagram of the slider provided by the utility model at a viewing angle;

[0026] Figure 3 It is a structural schematic diagram of the slider provided by the utility model at another viewing angle.

[0027] Figure 4 It is a structural schematic diagram of the contact support mechanism provided by the utility model;

[0028] Figure 5 It is a partial cross-sectional view of the contact support mechanism provided by the utility model;

[0029] Figure 6 It is a partial cross-sectional view of the contact support provided by the utility model;

[0030] In the figure:

[0031] 100, contact support; 110, first boss; 120, second through-hole; 130, fixed boss; 140, protrusion; 150, mounting groove; 151, pin hole; 200, slider; 210, mounting portion; 211, assembly hole; 212, assembly groove; 213, positioning hole; 2131, positioning plate; 214, fixing groove; 215, reinforced skirt; 220, sliding portion; 221, slide rail; 2211, sliding surface; 222, reinforcing rib; 223, reserved hole; 230, first through-hole; 300, moving iron core; 310, second boss; 320, third through-hole; 400, connecting piece; 500, buffer; 600, moving contact assembly; 610, moving contact; 620, bracket; 630, contact elastic member; 640, fixing pin; 700, reset elastic member. DETAILED DESCRIPTION

[0032] The present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only the parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0033] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0035] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplified operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation of the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0036] This embodiment provides a contact support mechanism, such as Figure 1-Figure 6 As shown, the contact support mechanism includes a contact support 100 and a slider 200, the slider 200 includes a mounting portion 210 and a sliding portion 220, the contact support 100 can be detachably mounted on the mounting portion 210, at least two sliding portions 220 are relatively fixedly mounted on both sides of the mounting portion 210, each sliding portion 220 is provided with at least one slide rail 221 extending along the movement direction of the contact support 100, and the slide rail 221 is used for sliding connection with the contactor base. By fixing the two sliding portions 220 on both sides of the mounting portion 210 respectively, and each sliding portion 220 is provided with at least one slide rail 221 extending along the movement direction of the contact support 100, it is possible to ensure that the two sliding portions 220 are balanced in force and move synchronously, so that the movement process of the contact support 100 is smoother, the reliability of the contactor is improved, and the sliding portion 220 of the slider 200 has good wear resistance, which increases the service life of the contactor and saves costs.

[0037] Alternatively, if Figure 2-Figure 3 As shown, in this embodiment, a sliding portion 220 is respectively provided on two opposite sides of the mounting portion 210, and each sliding portion 220 is located in the middle of the corresponding side, which ensures that the force of the slider 200 is balanced during the sliding process, so that the slider 200 slides more smoothly. In other embodiments, multiple sliding portions 220 can be respectively provided on two opposite sides of the mounting portion 210, and each sliding portion 220 can be correspondingly slidably connected in the slide groove of the contactor base. In this embodiment, there is no specific restriction on the number of sliding portions 220 of the slider 200.

[0038] Optionally, along the movement direction of the contact support 100, two slide rails 221 are respectively provided on both sides of each sliding part 220, and each slide rail 221 includes two sliding surfaces 2211. The slide rail 221 surface is located in the middle of the contactor, so that the guidance is more centered, which has a more effective effect on improving the overall performance of the contactor and ensuring the smooth movement of the contact support 100 and the contactor base.

[0039] Optionally, the contact support 100 is provided with a first boss 110, the mounting portion 210 is provided with an assembly hole 211, and the first boss 110 is inserted into the assembly hole 211, so that the contact support 100 is more firmly fixed on the mounting portion 210, reducing the possibility of loosening of the contact support 100, helping to keep the position of the contact support 100 unchanged, and ensuring the reliability of the contactor. In this embodiment, two first bosses 110 are provided on the contact support 100, and two assembly holes 211 are provided on the corresponding mounting portion 210, further improving the stability of the contact support 100.

[0040] Optionally, a mounting groove 212 is provided on one side of the mounting portion 210 away from the contact support 100, and the contact support mechanism further includes a moving iron core 300, which is disposed in the mounting groove 212. By disposing the moving iron core 300 in the mounting groove 212, it is possible to ensure that the position of the moving iron core 300 is fixed, thereby reducing unnecessary movement and swinging, helping to maintain the correct direction of action of the electromagnetic force, and ensuring the accuracy of contact closing and opening.

[0041] Optionally, a positioning plate 2131 is provided at one end of the assembly groove 212, and the positioning plate 2131 positions the end of the moving iron core 300, ensuring a more accurate installation position of the moving iron core 300, further ensuring the stability of the moving iron core 300, and improving the installation efficiency of the moving iron core 300.

[0042] Alternatively, if Figure 1-Figure 3As shown, a positioning hole 213 is provided on the mounting portion 210, and a second boss 310 is provided on the moving iron core 300. The second boss 310 is inserted into the positioning hole 213, which further improves the accuracy of the assembly position of the moving iron core 300, and the matching structure of the second boss 310 and the positioning hole 213 is conducive to the position correction after the moving iron core 300 and the static iron core are attracted, thereby ensuring that the moving contact 610 and the static contact can fit accurately to achieve circuit conduction.

[0043] Optionally, the slider 200 further includes a connecting piece 400, a first through hole 230 is provided on the sliding portion 220, a second through hole 120 is provided on the contact support 100, and a third through hole 320 is provided on the moving iron core 300. The connecting piece 400 sequentially penetrates the first through hole 230, the second through hole 120 and the third through hole 320, thereby locking the moving iron core 300 and the contact support 100 on the mounting portion 210, making the contact support mechanism more compact, and the use of the connecting piece 400 makes the assembly process more efficient and simple, thereby improving the assembly efficiency of the contact support mechanism. In this embodiment, the second through hole 120 is opened on the first boss 110 of the slider 200 to ensure that the structure of the contact support mechanism is more compact and save assembly space.

[0044] Specifically, the connecting piece 400 in this embodiment is an arc-shaped connecting piece 400 , which can mitigate the impact force on the contact support 100 and extend the life of the contact support 100 .

[0045] Optionally, the contact support mechanism further includes a buffer 500, which is disposed between the mounting portion 210 and the contact support 100. The buffer 500 can further buffer the impact force on the contact support 100. Therefore, when the moving and static iron cores are in contact, the buffer 500 is used to increase the buffering force and reduce the impact force, thereby effectively protecting the moving iron core 300 and the contact support mechanism, further extending the life of the contact support mechanism, reducing the need for maintenance and replacement, and reducing maintenance costs.

[0046] Alternatively, if Figure 1 As shown, the buffer member 500 includes a buffer spring, a fixing groove 214 is provided on the mounting portion 210, and a fixing boss 130 is provided on the contact support 100. One end of the buffer spring is inserted into the fixing groove 214, and the other end of the buffer spring abuts against the fixing boss 130, which can ensure that the buffer spring is accurately positioned, thereby ensuring the buffer function of the buffer spring and improving the reliability of the contact support mechanism. In addition, the presence of the buffer spring can effectively absorb the impact force received by the contact support 100 during operation. When the contact is closed or disconnected, the impact force is dispersed to the buffer spring, thereby reducing the impact directly transmitted to the mechanism, which helps to protect the mechanism components from damage or excessive wear.

[0047] Specifically, in this embodiment, four fixing grooves 214 are provided in the circumference of the mounting portion 210 of the slider 200, and correspondingly four fixing bosses 130 are provided on the contact support 100. A buffer spring is provided in each fixing groove 214, which can further improve the buffering effect and increase the service life of the contact support 100.

[0048] Optionally, the contact support 100 is made of a thermosetting material, and the slider 200 is made of a thermoplastic material. The contact support 100 made of a thermosetting material has good heat resistance and is suitable for working in a high temperature environment, thereby ensuring that the contact support 100 maintains stability under high temperature operating conditions. Thermoplastic materials generally have good wear resistance, so the slider 200 made of a thermoplastic material can effectively reduce the wear of the sliding connection part with the contactor base and improve the life of the contact support mechanism. In this embodiment, the contact support 100 made of a thermosetting material is used in combination with the slider 200 made of a thermoplastic material, which can give full play to the advantages of the two materials and improve the performance of the entire contact support mechanism.

[0049] Optionally, a plurality of reinforcing ribs 222 are provided on the sliding portion 220 . The provision of the reinforcing ribs 222 increases the structural strength of the sliding portion 220 , reduces the deformation of the sliding portion 220 , and prolongs the service life of the sliding portion 220 .

[0050] Optionally, a reinforcing skirt 215 is provided on the mounting portion 210, which increases the structural strength of the mounting portion 210. The reinforcing skirt 215 can prevent the mounting portion 210 from deforming, thereby increasing the service life of the mounting portion 210 and improving the reliability of the contact support mechanism.

[0051] Alternatively, if Figure 4-Figure 6 As shown, the contact support mechanism also includes a moving contact assembly 600, which includes a moving contact 610, a bracket 620, a contact elastic member 630 and a fixing pin 640. The contact support 100 is provided with a mounting groove 150 and a pin hole 151. The first end of the bracket 620 is inserted into the mounting groove 150, and the second end of the bracket 620 is protruded outside the mounting groove 150. The fixing pin 640 is penetrated in the pin hole 151. The moving contact 610 is penetrated at the second end of the bracket 620. One end of the contact elastic member 630 abuts against the first end of the bracket 620, and the other end abuts against the fixing pin 640. The contact elastic member 630, the bracket 620 and the fixing pin 640 cooperate to fix the moving contact 610 on the contact support 100. At the same time, the contact elasticity can provide contact pressure for the moving contact 610 to ensure good electrical contact between the moving contact 610 and the static contact.

[0052] Specifically, the contact elastic member 630 is a contact spring. The contact spring, as the contact elastic member 630 , can provide appropriate elastic force to ensure that the moving contact 610 has sufficient contact pressure when closed, so as to ensure good electrical contact.

[0053] Optionally, the contact support mechanism further includes a reset elastic member 700, and at least two protrusions 140 are provided on the contact support 100, and the two protrusions 140 are diagonally distributed on the side of the contact support 100 away from the moving contact 610, and a reset elastic member 700 is provided on each protrusion 140. When the coil in the contactor is energized, the moving and static iron cores generate electromagnetic attraction, so that the moving iron core 300 is attracted, driving the entire contact support mechanism to move, and realizing contact closure. When the coil is de-energized, the attraction between the moving and static iron cores disappears, and the reaction force of the reset elastic member 700 separates the moving and static iron cores, and the contacts are disconnected.

[0054] Optionally, in this embodiment, the reset elastic member 700 is a reset spring. The reset spring has high elasticity and can ensure that the moving contact 610 is quickly separated from the static contact when the switch is opened, thereby improving the breaking capacity and reliability of the contactor.

[0055] Optionally, a reserved hole 223 is provided on the sliding portion 220 of each slider 200, and the reserved hole 223 is a hook hole of the contactor interlocking structure. The slider 200 can be connected to the interlocking structure through the reserved hole 223, and the interlocking structure can increase the safety of the contactor operation, ensuring that the operation can only be performed when the slider 200 is in the correct position under certain conditions, thereby reducing the risk of accidental operation.

[0056] This embodiment also provides a contactor, including the above-mentioned contact supporting mechanism, which can improve the stability and reliability of the contactor and help ensure the stable operation of the electrical system.

[0057] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the implementation methods of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the scope of protection of the present invention. It is not necessary and impossible to list all implementation methods here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention shall be included in the scope of protection of the claims of the present invention.

Claims

1. A contact support mechanism, characterized in that: include Contact support (100); The slider (200) comprises a mounting portion (210) and a sliding portion (220); the contact support (100) is detachably mounted on the mounting portion (210); at least two sliding portions (220) are relatively mounted on two sides of the mounting portion (210); each sliding portion (220) is provided with at least one slide rail (221) extending along the movement direction of the contact support (100); and the slide rail (221) is used for being slidably connected to a contactor base.

2. The contact support mechanism according to claim 1, characterized in that: The contact support (100) is provided with a first boss (110), the mounting portion (210) is provided with an assembly hole (211), and the first boss (110) is inserted into the assembly hole (211).

3. The contact support mechanism according to claim 1, characterized in that: A mounting groove (212) is provided on a side of the mounting portion (210) facing away from the contact support (100), and the contact support mechanism further comprises a moving iron core (300), wherein the moving iron core (300) is arranged in the mounting groove (212).

4. The contact support mechanism according to claim 3, characterized in that: A positioning plate (2131) is provided at one end of the assembly groove (212), and the positioning plate (2131) is used to position the end of the moving iron core (300).

5. The contact support mechanism according to claim 3, characterized in that: The mounting portion (210) is provided with a positioning hole (213), the moving iron core (300) is provided with a second boss (310), and the second boss (310) is inserted into the positioning hole (213).

6. The contact support mechanism according to claim 3, characterized in that: The contact support mechanism also includes a connecting piece (400), the slider (200) is provided with a first penetration hole (230), the contact support (100) is provided with a second penetration hole (120), the moving iron core (300) is provided with a third penetration hole (320), and the connecting piece (400) is sequentially penetrated with the first penetration hole (230), the second penetration hole (120) and the third penetration hole (320).

7. The contact support mechanism according to claim 1, characterized in that: The contact support mechanism further comprises a buffer member (500), wherein the buffer member (500) is arranged between the mounting portion (210) and the contact support (100), and the buffer member (500) is used to buffer the impact force exerted on the contact support (100).

8. The contact support mechanism according to claim 7, characterized in that: The buffer component (500) comprises a buffer spring, the mounting portion (210) is provided with a fixing groove (214), the contact support (100) is provided with a fixing boss (130), one end of the buffer spring is inserted into the fixing groove (214), and the other end abuts against the fixing boss (130).

9. The contact support mechanism according to claim 1, characterized in that: The contact support (100) is made of a thermosetting material, and the slider (200) is made of a thermoplastic material.

10. A contactor, characterized in that Comprising the contact supporting mechanism as claimed in any one of claims 1 to 9.

Images