Moving contact mounting, banked multi-contact mounting, and multi-pole relay

Abstract

The utility model relates to electrical component technical field and disclose a moving contact mounting seat, a row of multiple contact mounting seat and multipolar relay, wherein the moving contact mounting seat is used for connecting push rod and is used for installing moving contact, spring, the moving contact mounting seat includes seat body and installation cover, the seat body is used for connecting the push rod and has installation groove and installation mouth, the opposite two side walls of installation groove are through and are used for installing moving contact, the installation mouth communicates installation groove and is located seat body connects the end surface of push rod, the installation mouth is used for the spring installation to installation groove, installation cover connects seat body and at least partial in installation mouth, the end surface of installation cover towards installation groove is used for with spring abutment, spring will not produce scratch between seat body in the installation process of this moving contact mounting seat, and no foreign matter such as chippings is produced, and then guarantee the normal work of relay.

Description

Technical Field

[0001] This utility model relates to the field of electrical component technology, and in particular to a moving contact mounting base, a multi-contact mounting base in a row, and a multi-pole relay. Background Technology

[0002] Driven by market demands for miniaturization and multifunctionality, electronic components are constantly being innovated and upgraded. This is especially true in the low-voltage electronic component industry, where the demand for multi-pole relays is increasing year by year. The synchronicity of the driving force and transmission structure of the magnetic circuit mechanism of a multi-pole relay is fundamental to its reliable operation.

[0003] The moving contact of the relay is installed in the moving contact mounting base of the push rod assembly. A spring is configured in the moving contact mounting base to buffer and reset the moving contact. When the moving and stationary contacts are in contact, the spring provides buffering between the moving and stationary contacts. When the moving and stationary contacts are de-energized and separated, there is an electric repulsive force that pushes the moving contact away. The spring counteracts part of the electric repulsive force and suppresses the generation of electric arc.

[0004] Currently, the method of installing the spring into the moving contact mounting base is to first compress the spring and then insert it into the moving contact mounting base through the side opening. During the installation process, the spring is prone to scraping against the inner wall of the moving contact mounting base, generating debris and other foreign objects, which can lead to problems such as poor contact and welding between the moving and stationary contacts of the relay, affecting the normal operation of the relay, or even damaging the relay. Utility Model Content

[0005] The main purpose of this utility model is to provide a moving contact mounting base, which aims to prevent the spring from scratching the moving contact mounting base during installation and ensure the normal operation of the relay.

[0006] To achieve the above objectives, the present invention proposes a moving contact mounting base for connecting a push rod and for mounting a moving contact and a spring. The moving contact mounting base includes: A base body for connecting the push rod and having a mounting groove and a mounting opening, wherein the opposite side walls of the mounting groove are through-walled and used for mounting the moving contact, and the mounting opening communicates with the mounting groove and is located at the end face of the base body connected to the push rod, the mounting opening being used for mounting the spring into the mounting groove; and A mounting cover is connected to the base and is at least partially located within the mounting opening, the end face of the mounting cover facing the mounting groove being used to abut against the spring.

[0007] In one embodiment, the mounting cover is detachably connected to the base.

[0008] In one embodiment, the seat body further has a clearance groove, and the mounting cover includes a cover body and a limiting protrusion connecting the peripheral wall of the cover body; The clearance groove and the mounting opening are formed on the same end face of the base and connect the mounting groove and the mounting opening; The cover body is located at the mounting opening and is used to abut against the spring; The mounting cover has an initial position and an abutment position. In the initial position, the cover body is located inside the mounting opening and the limiting protrusion is located inside the clearance groove. In the abutment position, the cover body is at least partially located inside the mounting groove, and the limiting protrusion abuts against the inner sidewall of the mounting groove facing the bottom wall of the groove.

[0009] In one embodiment, the seat body forms a limiting groove; The limiting groove is formed on the inner side wall of the mounting groove facing the bottom wall of the mounting groove, and the opening of the limiting groove faces the bottom wall of the mounting groove. At the abutment position, the limiting protrusion abuts against the bottom wall of the limiting groove.

[0010] In one embodiment, the limiting protrusion is spaced apart from the end face of the cover body facing away from the mounting groove.

[0011] In one embodiment, the mounting cover forms a limiting boss; The limiting boss protrudes from the end face of the mounting cover toward the mounting groove, and the limiting boss is used to limit the spring sleeve.

[0012] In one embodiment, the mounting cover is formed with a transmission portion; The transmission part is located on the end face of the mounting cover facing away from the mounting groove, and the transmission part is used to rotate the mounting cover under the action of external force.

[0013] In one embodiment, the transmission part is a transmission groove.

[0014] This utility model also proposes a multi-contact mounting base for mounting at least two moving contacts and at least two springs, wherein the multi-contact mounting base includes: At least two moving contact mounting seats, the sidewalls of each moving contact mounting seat are connected sequentially, and the mounting slots of each moving contact mounting seat are arranged through each other in the same direction; and A push rod, which is connected to the moving contact mounting base.

[0015] This utility model also proposes a multi-pole relay, the multi-pole relay comprising: shell; The multi-contact mounting base is disposed within the housing; A contact system comprising at least two moving contacts, at least two stationary contacts, and at least two springs, wherein each stationary contact is disposed in the housing, each moving contact is correspondingly mounted in a moving contact mounting base of the multi-contact mounting base, and each spring is correspondingly mounted in a moving contact mounting base; and An electromagnetic system is connected to the push rod and can drive the push rod to push each of the moving contact mounting seats to move synchronously, so that each of the moving contacts makes synchronous contact with each of the stationary contacts.

[0016] In the technical solution of this utility model, a mounting groove is opened on both sides of the base body. The moving contact can be installed into the mounting groove of the base body from the through side wall. Then, an installation port is set to connect the mounting groove. The spring is put into the mounting groove from the installation port. Then, the mounting cover is installed into the mounting port and abuts against the spring. The two ends of the spring abut against the moving contact and the mounting cover respectively, thereby completing the limiting installation of the spring. During the installation of this moving contact mounting base, the spring will not scrape against the base body and no foreign matter such as debris will be generated, thus ensuring the normal operation of the relay. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0018] Figure 1 A schematic diagram of a structure of an embodiment of the multi-contact mounting base provided by this utility model; Figure 2 for Figure 1 The diagram shows the structural breakdown of the embodiment.

[0019] Explanation of icon numbers: 1000, Multi-contact mounting base in a row; 100, Push rod; 200. Moving contact mounting base; 1. Base body; 11. Mounting groove; 12. Mounting port; 13. Alternating groove; 14. Limiting groove; 2. Mounting cover; 21. Cover body; 22. Limiting protrusion; 23. Limiting boss; 24. Transmission part; 300. Spring; 400. Moving contact.

[0020] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0023] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0024] This utility model proposes a moving contact mounting base 200. Figures 1 to 2 This is one embodiment of the present utility model.

[0025] In this embodiment of the utility model, the moving contact mounting base 200 is used to connect the push rod 100 and to mount the moving contact 400 and the spring 300. The moving contact mounting base 200 includes a base body 1 and a mounting cover 2. The base body 1 is used to connect the push rod 100 and has a mounting groove 11 and a mounting opening 12. The opposite side walls of the mounting groove 11 are through-connected and used to mount the moving contact 400. The mounting opening 12 communicates with the mounting groove 11 and is located at the end face of the base body 1 that connects to the push rod 100. The mounting opening 12 is used to allow the spring 300 to be mounted into the mounting groove 11. The mounting cover 2 is connected to the base body 1 and is at least partially located in the mounting opening 12. The end face of the mounting cover 2 facing the mounting groove 11 is used to abut against the spring 300.

[0026] In the technical solution of this utility model, a mounting groove 11 with through-walls on both sides is opened in the base 1. The moving contact 400 can be installed into the mounting groove 11 of the base 1 through the through-walls. Then, a mounting port 12 is set to connect the mounting groove 11. The spring 300 is put into the mounting groove 11 through the mounting port 12. Then, the mounting cover 2 is installed into the mounting port 12 and abuts against the spring 300. The two ends of the spring 300 abut against the moving contact 400 and the mounting cover 2 respectively, thereby completing the limiting installation of the spring 300. During the installation of the moving contact mounting base 200, the spring 300 will not rub against the base 1, and no debris or other foreign objects will be generated, thereby ensuring the normal operation of the relay.

[0027] When the moving and stationary contacts of the relay separate, an electric repulsive force is generated, which quickly pushes the moving contact 400 away and may generate an electric arc between the moving and stationary contacts. The moving contact mounting base 200 provided in this solution can compress the spring 300 to different degrees by adjusting the thickness of the mounting cover 2 and the depth of insertion into the mounting groove 11, thereby changing the elastic force of the spring 300. Through the above means, the spring 300 can have a greater elastic force (within the elastic limit) in a limited space, thereby balancing part of the electric repulsive force, suppressing the generation of electric arc, and ensuring the normal operation of the relay.

[0028] The connection method between the mounting cover 2 and the base 1 is not limited. After the spring 300 is installed, the mounting cover 2 can be fixed to the base 1 by gluing or welding.

[0029] In one embodiment, the mounting cover 2 is detachably connected to the base 1. Compared to fixing the mounting cover 2 to the base 1 after the spring 300 is installed, the detachable connection between the mounting cover 2 and the base 1 is more convenient for subsequent disassembly and replacement of parts. When replacing, simply remove the mounting cover 2 from the base 1 to easily remove the spring 300, moving contact 400, etc. for inspection and replacement, without damaging the structure of the base 1 and the mounting cover 2.

[0030] In one embodiment, to specifically realize the detachable connection between the mounting cover 2 and the base 1, the base 1 further has a clearance groove 13. The mounting cover 2 includes a cover body 21 and a limiting protrusion 22 connecting the peripheral wall of the cover body 21. The clearance groove 13 and the mounting opening 12 are formed on the same end face of the base 1 and connect the mounting groove 11 and the mounting opening 12. The cover body 21 is located in the mounting opening 12 and is used to abut against the spring 300. The mounting cover 2 has an initial position and an abutting position. In the initial position, the cover body 21 is located in the mounting opening 12 and the limiting protrusion 22 is located in the clearance groove 13. In the abutting position, the cover body 21 is at least partially located in the mounting groove 11, and the limiting protrusion 22 abuts against the inner side wall of the mounting groove 11 facing the bottom wall of the groove. By setting the limiting protrusion 22 and the avoidance groove 13, during the installation of the mounting cover 2, the cover body 21 is initially located inside the mounting opening 12, and the limiting protrusion 22 is located inside the avoidance groove 13. Then, under the action of external force, the cover body 21 is pushed towards the mounting groove 11. The limiting protrusion 22 moves with the cover body 21. After the limiting protrusion 22 moves until it is dislodged from the avoidance groove 13 and located inside the mounting groove 11, the cover body 21 is rotated so that the limiting protrusion 22 is misaligned with the avoidance groove 13. At this time, it is in the abutting position. Due to the elastic force of the spring 300, the spring 300 pushes the cover body 21 and makes the limiting protrusion 22 abut against the inner wall of the mounting groove 11, thus completing the installation. During disassembly, simply rotate the cover body 21 under external force, or press down the cover body 21 and then rotate it so that the limiting protrusion 22 is aligned with the clearance groove 13. At this point, remove the external force, and under the elastic force of the spring 300, the mounting cover 2 returns to the initial position. Then, the mounting cover 2, the spring 300, and the moving contact 400 can be removed to achieve disassembly. The installation process of the spring 300 does not rub against the inner wall of the base 1, so no foreign objects will be generated. As for the mounting cover 2, when the mounting cover 2 is pressed against the spring 300 and rotated, relative movement may occur. However, as long as it is rotated in the same direction as the spring 300, it can avoid rubbing against the end of the spring 300. When the spring 300 is removed, it can still be rotated in the same direction as the spring 300 to avoid rubbing. Even if the rotation direction is not paid attention to when removing it and rubbing occurs due to reverse rotation, since it is necessary to remove the parts at this time, the debris and other debris that fall into the mounting groove 11 can be removed manually, and it will not affect the normal use of the relay after subsequent reassembly.

[0031] The detachable connection between the mounting cover 2 and the base 1 is not limited to the above-described method and can be other structures. In one embodiment, a pin is added and a socket is provided in the base 1. After pressing the mounting cover 2 to compress the spring 300, the pin is inserted into the socket, forming a blocking structure on the side of the mounting cover 2 facing away from the mounting groove 11 to prevent the mounting cover 2 from popping out under the push of the spring 300.

[0032] In one embodiment, the base 1 forms a limiting groove 14, which is formed on the inner sidewall of the mounting groove 11 facing the bottom wall of the mounting groove 11. The opening of the limiting groove 14 faces the bottom wall of the mounting groove 11. At the abutment position, the limiting protrusion 22 abuts against the bottom wall of the limiting groove 14. Furthermore, the limiting groove 14 is provided on the base 1, so that when the limiting protrusion 22 reaches the abutment position, it has a definite position to limit the limiting protrusion 22 and control the rotation of the mounting cover 2. When the limiting protrusion 22 is aligned with the limiting groove 14, the spring force of the spring 300 pushes the limiting protrusion 22 into the limiting groove 14. The inner wall of the limiting groove 14 limits the continued rotation of the limiting protrusion 22, which can prevent the relay from rotating to the avoidance groove 13 and dislodging under vibration or other external factors. The limiting groove 14 provides a definite position for the limiting protrusion 22, so that it can reach the same position after each rotation of the mounting cover 2, instead of rotating at a random angle and being in a random position, which improves structural consistency and can produce assembly consistency.

[0033] In one embodiment, the limiting protrusion 22 is spaced apart from the end face of the cover body 21 facing away from the mounting groove 11. That is, there is a certain distance between the limiting protrusion 22 and the end face of the cover body 21 facing away from the mounting groove 11. This ensures that during the process of the limiting protrusion 22 moving from the initial position to the abutting position and after reaching the abutting position, the cover body 21 still has a portion of its structure located within the mounting opening 12. This prevents the cover body 21 from being completely located within the mounting groove 11 after the limiting protrusion 22 is pushed into the mounting groove 11, thus ensuring the normal progress of the installation process.

[0034] In one embodiment, the mounting cover 2 forms a limiting boss 23, which protrudes from the end face of the mounting cover 2 toward the mounting groove 11. The limiting boss 23 is used for limiting the spring 300 when it is fitted. By setting the limiting boss 23 and inserting it into the spring 300 from one end, the relative position between the spring 300 and the mounting cover 2 is determined, preventing the spring 300 from shifting laterally during installation under pressure, thus ensuring the normal progress of the installation process.

[0035] In one embodiment, the mounting cover 2 has a transmission part 24 located on the end face of the mounting cover 2 facing away from the mounting groove 11. The transmission part 24 is used to rotate the mounting cover 2 under the action of an external force. If the end face of the mounting cover 2 facing away from the mounting groove 11 is flat, it is not conducive to rotating the mounting cover 2. Therefore, the transmission part 24 is provided, and an external tool can cooperate with the transmission part 24 to realize the rotation of the mounting cover 2.

[0036] The specific structure of the transmission part 24 is not limited; it can be a transmission protrusion that can clamp the transmission protrusion and drive it to rotate.

[0037] In one embodiment, the transmission part 24 is a transmission groove. A tool inserted into the transmission groove can rotate the mounting cover 2. The advantage of a transmission groove is that the groove opening is visible, making it convenient for installers to align their tools with the groove. In contrast, the aforementioned transmission protrusion design requires the tool to clamp or accommodate the protrusion, creating visual obstruction and inconvenience.

[0038] Specifically, the transmission groove is a straight groove to simplify its structure and facilitate manufacturing.

[0039] This utility model also proposes a multi-contact mounting base 1000 for mounting at least two moving contacts 400 and at least two springs 300. The multi-contact mounting base 1000 includes at least two moving contact mounting bases 200 and a push rod 100. The side walls of each moving contact mounting base 200 are connected in sequence, and the mounting grooves 11 of each moving contact mounting base 200 are arranged through in the same direction. The push rod 100 is connected to the moving contact mounting base 200. The number of moving contact mounting seats 200 included in the multi-contact mounting base 1000 is the number of moving contacts 400 that can be installed simultaneously. Therefore, under the action of the push rod 100, the multi-contact mounting base 1000 can make at least two moving contacts 400 synchronously contact the same number of stationary contacts one-to-one, achieving synchronous operation. Furthermore, the multi-contact mounting base 1000 has the advantage of no foreign object interference, which can ensure normal contact between each moving and stationary contact, eliminate foreign object interference, and ensure the normal operation of the relay.

[0040] Since this multi-contact mounting base 1000 includes the moving contact mounting base 200, it also has all the technical solutions and all the beneficial effects brought about by the moving contact mounting base 200, which will not be described in detail here.

[0041] This utility model also proposes a multi-pole relay, which includes a housing, a multi-contact mounting base 1000, a contact system, and an electromagnetic system. The multi-contact mounting base 1000 is disposed within the housing. The contact system includes at least two moving contacts 400, at least two stationary contacts, and at least two springs 300. Each stationary contact is disposed within the housing. Each moving contact 400 is correspondingly mounted in each moving contact mounting base 200 of the multi-contact mounting base 1000. Each spring 300 is correspondingly mounted within each moving contact mounting base 200. The electromagnetic system is connected to a push rod 100 and can drive the push rod 100 to synchronously move each moving contact mounting base 200, so that each moving contact 400 synchronously contacts each stationary contact. The multi-pole relay can simultaneously connect to at least two circuits and simultaneously control the on / off state of two circuits. During operation, there is no interference from foreign objects at the moving and stationary contacts, ensuring normal operation.

[0042] Since this multi-pole relay includes the aforementioned multi-contact mounting base 1000, it also possesses all the technical solutions and beneficial effects brought about by the aforementioned multi-contact mounting base 1000, which will not be elaborated here.

[0043] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A moving contact mounting base, used to connect a push rod and to mount a moving contact and a spring, characterized in that, The moving contact mounting base includes: A base body for connecting the push rod and having a mounting groove and a mounting opening, wherein the opposite side walls of the mounting groove are through-walled and used for mounting the moving contact, and the mounting opening communicates with the mounting groove and is located at the end face of the base body connected to the push rod, the mounting opening being used for mounting the spring into the mounting groove; and A mounting cover is connected to the base and is at least partially located within the mounting opening, the end face of the mounting cover facing the mounting groove being used to abut against the spring.

2. The moving contact mounting base as described in claim 1, characterized in that, The mounting cover is detachably connected to the base.

3. The moving contact mounting base as described in claim 2, characterized in that, The seat also has a clearance groove, and the mounting cover includes a cover body and a limiting protrusion connecting the peripheral wall of the cover body; The clearance groove and the mounting opening are formed on the same end face of the base and connect the mounting groove and the mounting opening; The cover body is located at the mounting opening and is used to abut against the spring; The mounting cover has an initial position and an abutment position. In the initial position, the cover body is located inside the mounting opening and the limiting protrusion is located inside the clearance groove. In the abutment position, the cover body is at least partially located inside the mounting groove, and the limiting protrusion abuts against the inner sidewall of the mounting groove facing the bottom wall of the groove.

4. The moving contact mounting base as described in claim 3, characterized in that, The base body forms a limiting groove; The limiting groove is formed on the inner side wall of the mounting groove facing the bottom wall of the mounting groove, and the opening of the limiting groove faces the bottom wall of the mounting groove. At the abutment position, the limiting protrusion abuts against the bottom wall of the limiting groove.

5. The moving contact mounting base as described in claim 3, characterized in that, The limiting protrusion is spaced apart from the end face of the cover body facing away from the mounting groove.

6. The moving contact mounting base as described in any one of claims 1 to 5, characterized in that, The mounting cover forms a limiting boss; The limiting boss protrudes from the end face of the mounting cover toward the mounting groove, and the limiting boss is used to limit the spring sleeve.

7. The moving contact mounting base as described in any one of claims 1 to 5, characterized in that, The mounting cover has a transmission part formed therein; The transmission part is located on the end face of the mounting cover facing away from the mounting groove, and the transmission part is used to rotate the mounting cover under the action of external force.

8. The moving contact mounting base as described in claim 7, characterized in that, The transmission part is a transmission groove.

9. A multi-contact mounting base for mounting at least two moving contacts and at least two springs, characterized in that, The multi-contact mounting base includes: At least two moving contact mounting seats as described in any one of claims 1 to 6, wherein the sidewalls of each moving contact mounting seat are connected sequentially, and the mounting grooves of each moving contact mounting seat are provided through in the same direction; and A push rod, which is connected to the moving contact mounting base.

10. A multi-pole relay, characterized in that, The multi-pole relay includes: shell; The multi-contact mounting base as described in claim 9, wherein the multi-contact mounting base is disposed within the housing; A contact system comprising at least two moving contacts, at least two stationary contacts, and at least two springs, wherein each stationary contact is disposed in the housing, each moving contact is correspondingly mounted in a moving contact mounting base of the multi-contact mounting base, and each spring is correspondingly mounted in a moving contact mounting base; and An electromagnetic system is connected to the push rod and can drive the push rod to push each of the moving contact mounting seats to move synchronously, so that each of the moving contacts makes synchronous contact with each of the stationary contacts.

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