Movable spring structure, movable spring leading-out sheet and relay

Abstract

The utility model discloses a movable contact spring structure, a movable contact spring leading-out sheet and a relay, the movable contact spring structure comprises a movable contact spring body, the movable contact spring body comprises a base part used for being fixedly connected with the movable contact spring leading-out sheet and a swing part arranged corresponding to a static contact spring of the relay, and a bending part is arranged between the base part and the swing part. The bending part is configured to be bent downwards relative to the base part and bent back upwards, and the swing part extends upwards relative to the base part after being connected with the bending part. According to the utility model, the bending part used for increasing the flexibility of the movable contact spring is additionally arranged between the swinging part and the base part, on one hand, the flexibility of the movable contact spring is increased by using the bending part, so that the thickness of the movable contact spring is not limited too much, and compared with an existing mode of increasing the flexibility by reducing the thickness of the movable contact spring, the flexibility of the movable contact spring is improved on the premise of the same counter-force requirement. The thickness of the movable contact spring can be increased, so that the current-carrying area of the movable contact spring is increased, and the movable contact spring can be better suitable for a large-load current working condition.

Description

Technical Field

[0001] The utility model relates to the technical field of relays, and particularly relates to a moving reed structure, a moving reed lead-out piece and a relay. Background Art

[0002] A small-size high-voltage electromagnetic relay in the prior art includes a housing, a base, a moving reed, a static reed, a pushing card and a magnetic circuit part; the housing is connected to the base; the bottoms of the static reed, the moving reed and the magnetic circuit part are respectively installed on the base, and the pushing card is fitted between the moving reed and the magnetic circuit part; there is a relatively large distance between the moving reed and the static reed; the base protrudes upwardly to form a high wall, the pushing card includes a vertical member and a pushing arm horizontally connected to the vertical member, the top of the vertical member of the pushing card is rotatably installed at the top of the high wall of the base through a rotating shaft, and the pushing arm of the pushing card cooperates with a position near the root of the moving reed. The moving reed of the electromagnetic relay in this technical solution is L-shaped, the horizontal section of the moving reed is a straight edge, stress concentration is likely to occur at the riveting joint between the moving reed and the moving reed lead-out piece, and the moving reed is likely to break. In order to meet the mechanical life requirement, it is necessary to increase the flexibility of the moving reed. The prior art usually reduces the thickness of the reed to ensure its flexibility, which greatly limits the thickness of the moving reed. Furthermore, the current-carrying area of the moving reed is small and it cannot be applied to the occasion of large load current. Summary of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the utility model provides a moving reed structure, which mainly solves the technical problem that the current-carrying area of the existing moving reed is small and it cannot be applied to the occasion of large load current.

[0004] To achieve the above object, the utility model is realized through the following technical solutions:

[0005] A moving reed structure includes a moving reed body. The moving reed body includes a base for connecting and fixing with the moving reed lead-out piece of the relay and a swinging part corresponding to the static reed of the relay. A bending part for enhancing flexibility is provided between the base and the swinging part, and the bending part is configured to be bent downward and then folded upward relative to the base, and the swinging part extends upward relative to the base after being connected to the bending part.

[0006] Further, the bending part includes a first bending arm and a second bending arm connected to each other. The first bending arm is connected to one end of the base and is bent downward relative to the base, and the second bending arm is configured to be bent upward and then folded relative to the first bending arm.

[0007] Further, the first bending arm is arranged obliquely, the second bending arm is arranged vertically, and the lower ends of the first bending arm and the second bending arm are connected through a horizontal transition section.

[0008] Furthermore, there is a smooth transition connection between the lower end of the first bending arm and one end of the horizontal transition section, and between the lower end of the second bending arm and the other end of the horizontal transition section.

[0009] Furthermore, the movable spring body is an integrally bent structure.

[0010] Based on the same utility model concept, the utility model also provides a movable spring lead-out piece, which is used to be connected and fixed with any of the movable spring piece structures described above, including a lead-out piece body, the lead-out piece body includes a transversely arranged base, and the two ends of the base are respectively provided with a pin portion and a positioning portion extending vertically downward.

[0011] Furthermore, a connecting structure for connecting and fixing with the base of the movable spring structure is provided on the base.

[0012] Furthermore, the connection structure is a riveted column, and a riveted hole matching the riveted column is provided on the base of the movable spring structure.

[0013] Furthermore, the bending portion is configured to be located at a side position of one side of the pin portion, and a sufficient action gap is reserved between at least the first bending arm of the bending portion and the lead-out piece body.

[0014] Furthermore, the movable spring lead-out piece is configured to be plugged and fixedly installed on the base of the relay, and the left side and / or right side of the positioning portion of the movable spring lead-out piece is provided with a positioning convex bump for increasing the installation positioning accuracy of the movable spring lead-out piece on the base.

[0015] Based on the same utility model concept, the utility model also provides a relay, including any of the above-mentioned dynamic spring leaf structures and / or any of the above-mentioned dynamic spring lead-out pieces, the relay also includes a base, the dynamic spring lead-out piece is plugged and fixedly installed on the base, the dynamic spring leaf structure is connected and fixed to the dynamic spring lead-out piece, and the base is also provided with a limit piece corresponding to the swinging part of the dynamic spring leaf structure, the limit piece is configured to cooperate with the free end of the swinging part of the dynamic spring leaf structure to limit the rear swing amplitude when it resets and rebounds.

[0016] The above technical solution has the following advantages or beneficial effects:

[0017] In the moving reed structure, the moving reed lead-out piece and the relay of the present utility model, a bending portion for increasing the flexibility of the moving reed is added between the swinging portion and the base portion of the moving reed. The bending portion is configured to be bent downward and then folded upward relative to the base portion. The lead-out piece is respectively provided with a pin portion and a positioning portion extending vertically downward at both ends of the base platform. The moving reed is riveted and fixed on the riveting column of the moving reed lead-out piece, and the moving reed lead-out piece is inserted and fixed on the base. In this way, on the one hand, the bending portion of the moving reed is used to increase the flexibility of the moving reed, so that the thickness of the moving reed is not overly restricted. Compared with the existing method of reducing the thickness of the moving reed to improve its flexibility, under the premise of the same counter-force requirement, the thickness of this moving reed can be increased, thereby increasing the current-carrying area of the moving reed to better adapt to the working condition of large load currents. On the other hand, the bending portion of the moving reed is configured to be bent downward and then folded upward relative to the base portion. In this way, the limited space inside the relay can be better utilized, and the space utilization rate can be improved, which is conducive to the miniaturization of the relay. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 FIG. is a perspective structural view of the moving reed structure according to an embodiment of the present utility model.

[0019] Figure 2 FIG. is a perspective structural view of the moving reed lead-out piece according to an embodiment of the present utility model.

[0020] Figure 3 FIG. is an assembled structural view of the moving reed structure and the moving reed lead-out piece according to an embodiment of the present utility model.

[0021] Figure 4 FIG. is another angle assembled structural view of the moving reed structure and the moving reed lead-out piece according to an embodiment of the present utility model.

[0022] Figure 5 FIG. is a structural view of the relay according to an embodiment of the present utility model.

[0023] Reference Numeral Description:

[0024] 1. Moving reed body, 2. Lead-out piece body, 3. Static reed, 4. Base, 5. Limiting piece, 11. Base portion, 12. Swinging portion, 13. Bending portion, 21. Base platform, 22. Pin portion, 23. Positioning portion, 111. Riveting hole, 131. First bending arm, 132. Second bending arm, 133. Horizontal transition section, 211. Connection structure, 231. Positioning convex bud. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0025] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0026] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present utility model.

[0027] Please refer to the attached Figure 1 to the attached Figure 5 As shown in the figures, an embodiment of the present utility model provides a moving reed structure, which includes a moving reed body 1. The moving reed body 1 includes a base portion 11 for connecting and fixing with the moving reed lead piece of the relay and a swinging portion 12 arranged corresponding to the static reed 3 of the relay. A bending portion 13 for enhancing flexibility is provided between the base portion 11 and the swinging portion 12, and the bending portion 13 is configured to be bent downward and then folded upward relative to the base portion 11, and the swinging portion 12 extends upward relative to the base portion 11 after being connected to the bending portion 13. It can be understood that in this embodiment, compared with the L-shaped moving reed of the prior art, a bending portion 13 for increasing the flexibility of the moving reed is added between the swinging portion 12 and the base portion 11, and the bending portion 13 is configured to be bent downward and then folded upward relative to the base portion 11. In this way, on the one hand, the bending portion 13 is used to increase the flexibility of the moving reed, so that the thickness of the moving reed is not overly restricted. Compared with the prior art method of reducing the thickness of the moving reed to improve its flexibility, under the premise of the same flexibility requirement, the thickness of this moving reed can be increased, thereby increasing the current-carrying area of the moving reed to better suit the working conditions of large load currents. On the other hand, the bending portion 13 is configured to be bent downward and then folded upward relative to the base portion 11, which can reduce the height dimension of the moving reed. In this way, the limited space inside the relay can be better utilized, the space utilization rate can be improved, and the height of the relay can be reduced, which is conducive to the miniaturization of the relay. In addition, another benefit of the increased flexibility of the moving reed is that it can reduce the reaction force of the moving reed, thereby reducing the suction requirement, reducing the power consumption of the relay coil, making the working temperature of the relay lower, and thus meeting the requirements of micro-inverters.

[0028] Please refer to the attached Figure 1 to the attached Figure 4, in a preferred embodiment, the bending portion 13 includes a first bending arm 131 and a second bending arm 132 connected to each other. The first bending arm 131 is connected to one end of the base portion 11 and bends downward relative to the base portion 11, and the second bending arm 132 is configured to bend upward and back relative to the first bending arm 131. Preferably, the first bending arm 131 is inclined, the second bending arm 132 is vertical, and the lower ends of the first bending arm 131 and the second bending arm 132 are connected by a horizontal transition section 133. Further, the connection between the lower end of the first bending arm 131 and one end of the horizontal transition section 133 and the connection between the lower end of the second bending arm 132 and the other end of the horizontal transition section 133 are both smoothly transitional connections. In this embodiment, by configuring the first bending arm 131 to be inclined, when the moving reed structure and the moving reed lead-out piece are assembled, more reserved gaps can be generated between the first bending arm 131 and the moving reed lead-out piece, so as to ensure that the moving reed does not interfere with the moving reed lead-out piece unnecessarily within the movement stroke.

[0029] Please refer to the attached Figure 1 , the attached Figure 4 , in a preferred embodiment, the moving reed body 1 has an integrally bent structure.

[0030] Please refer to the attached Figure 2 to the attached Figure 4 , an embodiment of the present invention further provides a moving reed lead-out piece for connecting and fixing with the moving reed structure described above. It includes a lead-out piece body 2, and the lead-out piece body 2 includes a base 21 arranged horizontally. Vertical lead pin portions 22 and positioning portions 23 are respectively provided at both ends of the base 21. It can be understood that in this embodiment, the lead pin portions 22 and the positioning portions 23 of the lead-out piece body 2 are inserted into the base 4 of the relay, and the lead pin portions 22 penetrate through the bottom of the base 4 and extend downward. Through the plug-in fit of the lead pin portions 22 and the positioning portions 23 with the corresponding jacks on the base 4, the installation stability and assembly accuracy between the lead-out piece body 2 and the base 4 are greatly improved. In this way, the consistency of the product structure parameters can be effectively improved, and the product has good high-temperature stability. At the same time, the insertion and extraction force between the moving reed lead-out piece and the base 4 is large, and it is not easy to loosen during the assembly process, further ensuring good parameter consistency of the product.

[0031] Please refer to the attached Figure 2 to the attached Figure 4, in one preferred embodiment, a connecting structure 211 for connecting and fixing with the base portion 11 of the moving reed structure is provided on the base 21. In one preferred embodiment, preferably, the connecting structure 211 is a riveting post, and a riveting hole 111 matching with the riveting post is formed on the base portion 11 of the moving reed structure. However, those skilled in the art should understand that in other embodiments, the base portion 11 of the moving reed structure and the base 21 of the moving reed lead piece can also be fixed through other existing connecting structures, such as being locked by screws, etc., and are not limited to the specific implementation manners disclosed in this embodiment.

[0032] Please refer to the attached Figure 2 to the attached Figure 4 , in one preferred embodiment, the bending portion 13 is configured to be located at a side position on one side of the pin portion 22, and at least a sufficient movement gap is reserved between the first bending arm 131 of the bending portion 13 and the lead piece body 2. It can be understood that in this embodiment, since the bending portion 13 is configured to be located at a side position on one side of the pin portion 22, thus, compared with the technical solution of the prior art CN110335781A, that is, using the bending portion 13 to improve the flexibility of the moving reed and thereby increasing the thickness of the moving reed to increase its current-carrying area, and the bending portion 13 is configured to be bent downward and then folded upward relative to the base portion 11 and located at a side position on one side of the pin portion 22, thereby effectively utilizing the idle space inside the relay, improving the space utilization rate, and being able to better meet the requirements of the miniaturization of the relay to reduce the height dimension of the relay.

[0033] Please refer to the attached Figure 2 to the attached Figure 4 , in one preferred embodiment, the moving reed lead piece is configured to be inserted and fixedly installed on the base 4 of the relay, and positioning convex bumps 231 for increasing the installation and positioning accuracy of the moving reed lead piece on the base 4 are provided on the left side surface and / or the right side surface of the positioning portion 23 of the moving reed lead piece. The positioning convex bumps 231 can be circular or square or other special-shaped structures. The assembly position accuracy of the moving reed lead piece and the base 4 is further corrected by using the positioning convex bumps 231. In this embodiment, the positioning portion of the moving reed lead piece can not only strengthen its connection strength with the base, but also realize the effective positioning of the moving reed lead piece. The positioning convex bumps are also provided on the side surface of the positioning portion, which can further increase the installation stability and assembly accuracy of the moving reed lead piece on the base. Thus, the consistency of the product structure parameters can be effectively improved, and the product has good high-temperature stability, thereby improving the environmental adaptability of the product.

[0034] Please refer to the attached Figure 1 to the attached Figure 5An embodiment of the utility model further provides a relay, comprising any of the above-mentioned movable spring leaf structures and / or any of the above-mentioned movable spring lead-out pieces. Preferably, the relay further comprises a base 4, on which the movable spring lead-out piece is plugged and fixedly mounted. The movable spring leaf structure is connected and fixed to the movable spring lead-out piece, and the base 4 is further provided with a limiting piece 5 corresponding to the swinging portion 12 of the movable spring leaf structure. The limiting piece 5 is configured to cooperate with the free end of the swinging portion 12 of the movable spring leaf structure to limit the rear swing amplitude when it resets and rebounds.

[0035] As described above, the embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some of the technical features therein with equivalents. These modifications or replacements do not make the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the utility model. Therefore, all other embodiments obtained by ordinary technicians in the field without making creative work belong to the protection scope of the utility model.

Claims

1. A moving reed structure, comprising a moving reed body (1), the moving reed body (1) including a base portion (11) for connecting and fixing with a moving reed lead piece of a relay and a swinging portion (12) arranged corresponding to a static reed (3) of the relay, characterized in that: A bending portion (13) for enhancing flexibility is provided between the base (11) and the swing portion (12), and the bending portion (13) is configured to bend downward relative to the base (11) and fold back upward, while the swing portion (12) and the bending portion (13) are connected to extend upward relative to the base (11).

2. The moving reed structure according to claim 1, characterized in that: The bending portion (13) comprises a first bending arm (131) and a second bending arm (132) which are connected to each other. The first bending arm (131) is connected to one end of the base (11) and is bent downward relative to the base (11). The second bending arm (132) is configured to bend back upward relative to the first bending arm (131).

3. The moving reed structure according to claim 2, characterized in that: The first bending arm (131) is arranged in an inclined shape, the second bending arm (132) is arranged in a vertical shape, and the lower end of the first bending arm (131) and the lower end of the second bending arm (132) are connected via a horizontal transition section (133).

4. The moving reed structure according to claim 3, characterized in that: The lower end of the first bending arm (131) and one end of the horizontal transition section (133) as well as the lower end of the second bending arm (132) and the other end of the horizontal transition section (133) are both smoothly transitionally connected.

5. The moving reed structure according to claim 1, wherein: The movable spring body (1) is an integrally bent structure.

6. A moving spring lead piece, which is used for connecting and fixing with the moving spring piece structure described in any one of claims 1 to 5, and is characterized in that: The lead-out piece body (2) comprises a base (21) arranged transversely, and two ends of the base (21) are respectively provided with a pin portion (22) and a positioning portion (23) extending vertically downward.

7. The moving spring lead piece according to claim 6, wherein: The base (21) is provided with a connection structure (211) for connecting and fixing with the base (11) of the movable spring structure.

8. The moving spring lead piece according to claim 7, wherein: The connection structure (211) is a riveted column, and a riveted hole (111) matching the riveted column is provided on the base (11) of the movable spring structure.

9. The moving spring lead piece according to claim 6, characterized in that: The bending portion (13) is configured to be located at a side position on one side of the pin portion (22), and a sufficient action gap is reserved between at least the first bending arm (131) of the bending portion (13) and the lead-out piece body (2).

10. The moving contact lead piece according to claim 9, characterized in that: The movable spring lead-out piece is configured to be plugged and fixedly installed on a base (4) of the relay, and a positioning convex bump (231) for increasing the installation positioning accuracy of the movable spring lead-out piece on the base (4) is provided on the left side and / or right side of the positioning portion (23) of the movable spring lead-out piece.

11. A relay, characterized in that: It comprises the dynamic spring piece structure as described in any one of claims 1 to 5 and / or the dynamic spring lead-out piece as described in any one of claims 6 to 10.

12. The relay according to claim 11, characterized in that: The relay also includes a base (4), the movable spring lead-out piece is plugged and fixedly installed on the base (4), the movable spring structure is connected and fixed to the movable spring lead-out piece, and the base (4) is also provided with a limit piece (5) arranged corresponding to the swinging part (12) of the movable spring structure, and the limit piece (5) is configured to cooperate with the free end of the swinging part (12) of the movable spring structure to limit the rearward swing amplitude when it is reset and rebounded.

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