Contactor with muting effect

Abstract

The utility model discloses a contactor with mute effect, include: the shell is equipped with the accommodation cavity, the coil assembly includes the coil stand, and the coil stand is equipped with the chamber, the magnetic yoke subassembly is equipped with the first intermediate part and two first end parts, and two first end parts are connected with the first intermediate part respectively, and the first intermediate part extends to the chamber, and the magnetic yoke subassembly is equipped with the buffer piece between the accommodation cavity bottom surface, the armature subassembly is equipped with the second intermediate part and two second end parts, and two second end parts are connected with the second intermediate part respectively, and the second intermediate part extends to the chamber, and the second intermediate part is cooperated with the first intermediate part, and the second end part is cooperated with the first end part, in the product suction process, the buffer piece compression makes the magnetic yoke subassembly and armature subassembly same direction's relative movement, reduces the impact energy, reduces the impact noise, secondly, the buffer piece plays the separation between the magnetic yoke subassembly and the accommodation cavity bottom surface, reduces the energy that the magnetic yoke subassembly is passed to the shell after bearing the impact, reduces the noise, reaches the effect of mute.

Description

Technical Field

[0001] This utility model relates to the field of electrical technology, specifically to a contactor with a silent operation effect. Background Technology

[0002] The contactor includes a magnetic yoke assembly, a coil assembly, and an armature assembly. The magnetic yoke assembly and the coil assembly cooperate. When the coil assembly is energized, the magnetic yoke assembly generates a magnetic field, which attracts the armature assembly, causing the armature assembly to move toward the magnetic yoke assembly. Finally, the two are attracted together. The armature assembly has a fixed moving contact. When the armature assembly and the magnetic yoke assembly are attracted together, the moving contact and the stationary contact are also electrically connected.

[0003] However, in the existing technology, the armature assembly and the yoke assembly will generate noise when they are engaged and disengaged. In some application environments, it is required to achieve a silent effect, that is, to reduce the noise generated by the armature assembly and the yoke assembly when they are engaged and disengaged, so as to achieve a silent effect. Utility Model Content

[0004] Therefore, the technical problem to be solved by this utility model is how to improve noise reduction. A contactor with a silent effect includes:

[0005] The housing has a receiving cavity;

[0006] A coil assembly, wherein the coil assembly is housed in the receiving cavity, the coil assembly including a coil frame having a chamber that is open at the top and bottom;

[0007] A magnetic yoke assembly is housed in the receiving cavity. The magnetic yoke assembly has a first intermediate portion and two first ends, with the two first ends respectively connected to the first intermediate portion. The first intermediate portion extends into the cavity. A buffer is provided between the magnetic yoke assembly and the bottom surface of the receiving cavity.

[0008] An armature assembly is provided with a second intermediate portion and two second ends, the two second ends being respectively connected to the second intermediate portion, the second intermediate portion extending into the chamber; the second intermediate portion cooperates with the first intermediate portion, and the second ends cooperate with the first ends.

[0009] The buffer includes a connecting part and two protrusions. The two ends of the connecting part are respectively connected to the two protrusions. The top surface of the protrusion is higher than the top surface of the connecting part. The protrusion abuts against the bottom surface of the magnetic yoke assembly. A gap is provided between the connecting part and the bottom surface of the magnetic yoke assembly.

[0010] It also includes an annular component, which is fitted onto the first middle part and is located below the coil frame.

[0011] The ring-shaped component is made of a magnetically conductive metal.

[0012] The annular component is provided with a limiting part, which abuts against the side of the first middle part.

[0013] The annular component is located between the coil frame and the bottom surface of the first intermediate part.

[0014] The inner wall of the cavity is provided with a guide groove, and the armature assembly slides along the guide groove.

[0015] The guide groove is coated with damping grease.

[0016] The first middle part is provided with a groove, which is V-shaped or U-shaped, and the second middle part is provided with a boss that mates with the groove.

[0017] The technical solution of this utility model has the following advantages:

[0018] 1. The contactor with a silent effect provided by this utility model has a buffer component. During the product attraction process, the buffer component is compressed, which causes the magnetic yoke assembly and the armature assembly to move in the same direction relative to each other, thereby reducing impact energy and impact noise. Secondly, the buffer component mainly serves to separate the magnetic yoke assembly from the bottom surface of the receiving cavity, reducing the energy transmitted to the housing after the magnetic yoke assembly is subjected to impact, reducing noise, and achieving a silent effect.

[0019] 2. The contactor with a silent effect provided by this utility model has a raised part and a connecting part that form a raised effect at both ends. During the attraction process, the raised part is compressed first. When the bottom surface of the magnetic yoke assembly abuts against the connecting part, the connecting part is also compressed, which plays a double buffering role, reducing impact energy and impact noise.

[0020] 3. The contactor with a silent effect provided by this utility model has the following characteristics: During the engagement process, a current opposite to that of the coil is generated in the ring component, which hinders the increase of the magnetic flux of the coil, thereby slowing down the action time and speed of the product and ultimately reducing the engagement noise of the product; During the release process, an induced current in the same direction is generated in the ring component, which hinders the decrease of the magnetic flux, thereby reducing the release action time and speed of the product and ultimately reducing the engagement noise of the product.

[0021] 4. The contactor with a silent effect provided by this utility model has a limiting part that forms a horizontal limiting fixation to prevent the ring part from shaking.

[0022] 5. The present invention provides a contactor with a silent effect. This structure forms a vertical limiting fixation, which improves the fixing strength of the ring part.

[0023] 6. The contactor with a silent effect provided by this utility model mainly uses damping grease to dampen the contact during the engagement and release process, thereby reducing the motion energy of each component and reducing noise; it can also ensure that the product maintains smooth operation during long-term work and extend the product's lifespan. Attached Figure Description

[0024] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 A schematic diagram of the structure of a contactor with a silent operation provided by this utility model;

[0026] Figure 2 A cross-sectional view of a contactor with a silent operation provided by this utility model;

[0027] Figure 3 for Figure 2 Enlarged view of part A in the middle;

[0028] Figure 4 A schematic diagram of the coil frame provided by this utility model;

[0029] Figure 5 A schematic diagram of the structure of the magnetic yoke assembly and the ring component provided by this utility model;

[0030] Figure 6 A schematic diagram of the structure of the buffer provided by this utility model.

[0031] Explanation of reference numerals in the attached figures:

[0032] 11. Coil frame; 12. Magnetic yoke assembly; 13. Buffer; 14. Armature assembly; 15. Ring component; 16. Base; 17. Moving contact; 18. Stationary contact; 19. Housing; 20. Spring; 111. Chamber; 112. Guide groove; 121. First intermediate part; 122. First end; 131. Connecting part; 132. Protrusion; 141. Second intermediate part; 142. Second end; 151. Limiting part; 191. Receiving cavity; 1211. Groove; 1221. First inclined surface; 1411. Boss; 1421. Second inclined surface. Detailed Implementation

[0033] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0034] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0035] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0037] Example 1

[0038] This embodiment provides a contactor with a silent operation, as shown in the attached diagram. Figures 1-6 As shown, it includes:

[0039] The housing 19 has a receiving cavity 191.

[0040] A coil assembly is housed in a receiving cavity 191. The coil assembly includes a coil frame 11 and a coil wound on the coil frame 11. The coil is powered by a power supply circuit. This power supply circuit can be electrically connected via terminals on a contactor; this is prior art and will not be described in detail in this embodiment. The coil frame 11 has a cavity 111, which is open at both the top and bottom. Specifically, the cavity 111 has a through-hole structure.

[0041] A magnetic yoke assembly 12 is housed within a receiving cavity 191. The magnetic yoke assembly 12 has a first intermediate portion 121 and two first end portions 122, each connected to the first intermediate portion 121. The two first end portions 122 and the first intermediate portion 121 together form a mountain-shaped structure. The first intermediate portion 121 extends into the cavity 111, while the two first end portions 122 are located outside the coil assembly, i.e., outside the coil. A buffer member 13 is provided between the magnetic yoke assembly 12 and the bottom surface of the receiving cavity 191.

[0042] An armature assembly 14 is housed in a receiving cavity 191. In this embodiment, the armature assembly 14 is located above the coil assembly and the yoke assembly 12. The armature assembly 14 has a second intermediate portion 141 and two second end portions 142. The two second end portions 142 are respectively connected to the second intermediate portion 141. The second intermediate portion 141 and the two second end portions 142 cooperate to form an inverted V-shaped structure, so that the armature assembly 14 and the yoke assembly 12 are correspondingly arranged. The second intermediate portion 141 extends into the cavity 111, that is, both the first intermediate portion 121 and the second intermediate portion 141 are located in the cavity 111, realizing the cooperation between the second intermediate portion 141 and the first intermediate portion 121. The second end portions 142 cooperate with the first end portions 122. The first end portion 122 located on the left cooperates with the second end portion 142 located on the left, and the first end portion 122 located on the right cooperates with the second end portion 142 located on the right. In this embodiment, the magnetic yoke assembly 12 is fixedly connected to the coil frame 11. When the coil is energized, the magnetic yoke assembly 12 generates a magnetic field, causing the armature assembly 14 to move toward the magnetic yoke assembly 12, that is, the armature assembly 14 moves vertically downward toward the magnetic yoke assembly 12. The armature assembly 14 is linked with the moving contact 17, and when the two come into contact, an attraction effect is formed. When the coil is de-energized, a release effect is formed, and the armature assembly 14 returns to its initial position. This is prior art.

[0043] An armature assembly 14 is housed in a receiving cavity 191. The armature assembly 14 has a second intermediate portion 141 and two second ends 142, which are respectively connected to the second intermediate portion 141. The second intermediate portion 141 extends into the cavity 111. The second intermediate portion 141 engages with a first intermediate portion 121, and the second ends 142 engage with the first ends 122. The buffer 13 is provided so that during product attraction, the buffer 13 is compressed, causing the yoke assembly 12 and the armature assembly 14 to move relative to each other in the same direction, reducing impact energy and impact noise. Secondly, the buffer 13 primarily serves to separate the yoke assembly 12 from the bottom surface of the receiving cavity 191, reducing the energy transmitted from the yoke assembly 12 to the housing 19 after impact, thus reducing noise and achieving a silent effect.

[0044] Specifically, as shown in the attached document Figure 3 , Figure 6 As shown, the buffer 13 includes a connecting portion 131 and two protrusions 132. Both ends of the connecting portion 131 are connected to the two protrusions 132, which are located on opposite sides of the buffer 13 and connected by the connecting portion 131. The top surface of the protrusion 132 is higher than the top surface of the connecting portion 131, and the bottom surface of the protrusion 132 is coplanar with the connecting portion 131. The top surface of the protrusion 132 abuts against the bottom surface of the magnetic yoke assembly 12, and a gap is provided between the connecting portion 131 and the bottom surface of the magnetic yoke assembly 12. The protrusions 132 and the connecting portion 131 create a raised effect at both ends. During the attraction process, the protrusions 132 are compressed first, and when the bottom surface of the magnetic yoke assembly 12 abuts against the connecting portion 131, the connecting portion 131 is also compressed, achieving a double buffering effect, reducing impact energy and impact noise. Alternatively, the buffer 13 can also employ other structures to achieve the buffering effect.

[0045] Specifically, as shown in the attached document Figure 6 As shown, in this embodiment, the buffer 13 is a horizontally arranged I-shaped structure, the connecting part 131 is the middle part of the I-shaped structure, and the two protrusions 132 correspond to the upper and lower ends of the I-shaped structure.

[0046] Specifically, as shown in the attached document Figure 3 As shown, the housing 19 includes a base 16, and the buffer 13 is specifically located between the magnetic yoke assembly 12 and the base 16. In this embodiment, the buffer 13 can be made of rubber or other buffer materials.

[0047] Specifically, as shown in the attached document Figure 3 , Figure 5 As shown, it also includes an annular component 15, which is sleeved on the first intermediate portion 121 and located below the coil frame 11. During the attraction process, an annular component 15 generates a current opposite to that of the coil, which hinders the increase of the magnetic flux of the coil, thereby slowing down the product's action time and speed, and ultimately reducing the product's attraction noise. During the release process, an induced current in the same direction is generated in the annular component 15, which hinders the decrease of the magnetic flux, thereby reducing the product's release action time and speed, and ultimately reducing the product's attraction noise.

[0048] Specifically, the annular component 15 is made of a magnetically conductive metal. The annular component 15 can be made of aluminum, copper, or iron, and those skilled in the art can adjust it according to actual needs.

[0049] Specifically, as shown in the attached document Figure 3 , Figure 5As shown, the annular component 15 is provided with a limiting part 151, which abuts against the side of the first intermediate part 121. The limiting part 151 provides horizontal positioning and fixation, preventing the annular component 15 from shaking. In this embodiment, since the annular component 15 has an annular structure with a hole in the middle, the limiting part 151 is provided on the inner wall of the hole. There are four limiting parts 151, which abut against the corresponding positions of the first intermediate part 121 to form horizontal positioning.

[0050] Specifically, the annular component 15 is located between the coil frame 11 and the bottom surface of the first intermediate portion 121. This structure provides vertical positioning and fixation, improving the fixing strength of the annular component 15. After installation, the coil frame 11 forms the fixing effect of the annular component 15.

[0051] Specifically, as shown in the attached document Figure 4 As shown, the inner wall of the chamber 111 is provided with guide grooves 112, and there are two guide grooves 112, which are located on the front and rear sides of the inner wall of the chamber 111, respectively. The armature assembly 14 slides along the guide grooves 112. In this embodiment, the front and rear sides of the armature assembly 14 slide along the guide grooves 112 to prevent the armature assembly 14 from shaking during the sliding process.

[0052] Specifically, the guide groove 112 is coated with damping grease. The damping grease mainly serves to dampen the motion during the engagement and disengagement process, thereby reducing the kinetic energy and noise; it also ensures that the product maintains smooth operation during long-term use and extends the product's lifespan.

[0053] Specifically, as shown in the attached document Figure 2 As shown, the first intermediate portion 121 is provided with a groove 1211, which is V-shaped or U-shaped, and the second intermediate portion 141 is provided with a boss 1411 that mates with the groove 1211. The groove 1211 and the boss 1411 mate with each other to form a mating effect.

[0054] Specifically, as shown in the attached document Figure 2 As shown, both first ends 122 are provided with first inclined surfaces 1221, which cooperate to form a figure-eight structure. The second end 142 is provided with a corresponding second inclined surface 1421. When the armature assembly 14 and the magnetic yoke assembly 12 are attracted, the first inclined surface 1221 and the second inclined surface 1421 are in contact. The second inclined surface 1421 is connected to the bottom surface of the second end 142, while the first inclined surface 1221 is connected to the top surface of the fixing block.

[0055] Specifically, as shown in the attached document Figure 2As shown, a spring 20 is also fixed between the coil frame 11 and the armature assembly 14. One end of the spring 20 abuts against the top surface of the coil frame 11, and the other end of the spring 20 is sleeved on the second middle part 141, which plays a role in resetting the armature assembly 14. During the attraction process, the spring 20 plays a buffering role, and during the release process, the spring 20 plays a resetting role.

[0056] Specifically, as shown in the attached document Figure 2 As shown, the top surface of the armature assembly 14 is linked with the moving contact 17, and the armature assembly 14 drives the moving contact 17 to move, thereby realizing the connection or disconnection between the moving contact 17 and the stationary contact 18.

[0057] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.

Claims

1. A contactor with a muting effect, characterized by, include: The housing (19) is provided with a receiving cavity (191); A coil assembly is housed in the receiving cavity (191). The coil assembly includes a coil frame (11) with a chamber (111) that is open at the top and bottom. A magnetic yoke assembly (12) is housed in the receiving cavity (191). The magnetic yoke assembly (12) has a first intermediate portion (121) and two first ends (122), which are respectively connected to the first intermediate portion (121). The first intermediate portion (121) extends to the cavity (111). A buffer member (13) is provided between the magnetic yoke assembly (12) and the bottom surface of the receiving cavity (191). The armature assembly (14) has a second intermediate part (141) and two second ends (142), the two second ends (142) are respectively connected to the second intermediate part (141), the second intermediate part (141) extends to the chamber (111); the second intermediate part (141) cooperates with the first intermediate part (121), and the second ends (142) cooperate with the first ends (122).

2. The contactor with a muting effect according to claim 1, characterized in that, The buffer (13) includes a connecting part (131) and two protrusions (132). The two ends of the connecting part (131) are respectively connected to the two protrusions (132). The top surface of the protrusions (132) is higher than the top surface of the connecting part (131). The protrusions (132) abut against the bottom surface of the magnetic yoke assembly (12). A gap is provided between the connecting part (131) and the bottom surface of the magnetic yoke assembly (12).

3. The contactor with a muting effect according to claim 2, characterized in that, It also includes an annular component (15), which is fitted onto the first intermediate portion (121) and is located below the coil frame (11).

4. The contactor with a muting effect according to claim 3, characterized in that, The annular component (15) is made of a magnetically conductive metal.

5. The contactor with a muting effect according to claim 3, characterized in that, The annular part (15) is provided with a limiting part (151), which abuts against the side of the first intermediate part (121).

6. The contactor with a muting effect according to claim 3, characterized in that, The annular component (15) is located between the coil frame (11) and the bottom surface of the first intermediate part (121).

7. The contactor with a muting effect according to claim 1, characterized by The inner wall of the chamber (111) is provided with a guide groove (112), and the armature assembly (14) slides along the guide groove (112).

8. The contactor with a silent operation according to claim 7, characterized in that, The guide groove (112) is coated with damping grease.

9. The contactor with a silent operation according to claim 1, characterized in that, The first intermediate part (121) is provided with a groove (1211), the groove (1211) is V-shaped or U-shaped, and the second intermediate part (141) is provided with a boss (1411) that cooperates with the groove (1211).

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