CN218769312U

CN218769312U - Auxiliary contact module of contactor

Info

Publication number: CN218769312U
Application number: CN202221576222.4U
Authority: CN
Inventors: 刘长源; 王海渊; 胡吉庆
Original assignee: Shanghai Chint Intelligent Technology Co Ltd
Current assignee: Shanghai Chint Intelligent Technology Co Ltd
Priority date: 2022-06-22
Filing date: 2022-06-22
Publication date: 2023-03-28
Anticipated expiration: 2032-06-22

Abstract

The utility model provides a contactor auxiliary contact module, includes contact support, micro-gap switch, support and spring, the support is including two slides that set up relatively to and roof, at least one of a body coupling between two slides be equipped with limit structure on the slide, be equipped with the mounting platform who corresponds with the support in the contact support, mounting platform can pass between two slides with roof spacing cooperation, at mounting platform with form drive space between the limit structure, the spring inserts drive space, and by mounting platform and limit structure are spacing respectively, the support corresponds the setting with micro-gap switch, and the removal that the contact supported can drive the support and press micro-gap switch and dodge micro-gap switch, and the support pushes down on micro-gap switch under the spring action, converts the long stroke that the contact supported into the short stroke of support, avoids support extrusion micro-gap switch and jamming or damage probably appear.

Description

Auxiliary contact module of contactor

Technical Field

The utility model relates to a low voltage apparatus field, concretely relates to contactor auxiliary contact module.

Background

The contactor is one of the main low-voltage elements for controlling the motor, and the main functions of the contactor are to connect, disconnect and bear the motor circuit or the power transmission and distribution circuit frequently and remotely. The electromagnetic system can be provided with an auxiliary moving contact part which is connected with an auxiliary moving contact support and is connected with an auxiliary static contact fixed on the contactor base in a switching mode.

Because of the demand of the electric control line, an external auxiliary contact group is generally required to be added on the contactor for connecting and disconnecting the coil loop of the contactor for controlling other motors/distribution lines or identifying and feeding back the working state of other electric lines, so that the microcomputer system of the control cabinet can judge the system state in time and make correct and timely feedback. The common auxiliary contact group in present market is conventional double-contact direct-acting type auxiliary contact for control conventional load circuit, but because the development demand of popularization and application and special application occasion of electronic and electrical products, the electric circuit has also improved the requirement to auxiliary contact's reliability, especially in the aspect of performance such as low-voltage, low-current, many dusts, humidity, vibration, current conventional double-contact direct-acting type auxiliary contact appears nonconducting, mistake break-make phenomenon in aforementioned work occasion often, cause unpredictable electric accident, its not enough has revealed gradually, urgent demand one kind can satisfy the auxiliary contact of contactor of aforementioned harsh operating mode.

Disclosure of Invention

An object of the utility model is to overcome prior art's defect, provide a simple structure, high auxiliary contact module of contactor of reliability.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a contactor auxiliary contact module, includes contact support, micro-gap switch, support and spring, the support is including two slides of relative setting to and roof, at least one of a body coupling between two slides be equipped with limit structure on the slide, be equipped with the mounting platform who corresponds with the support in the contact support, mounting platform can pass between two slides with the spacing cooperation of roof, at mounting platform with form drive space between the limit structure, the spring is inserted drive space, and by mounting platform and limit structure are spacing respectively, the support corresponds the setting with micro-gap switch, and the removal that the contact supported can drive the support and press micro-gap switch and dodge micro-gap switch.

Preferably, limit structure is including setting up the baffle in the support inboard to and connect the bottom plate between baffle and slide, and the spring is kept away from mounting platform tip and can be inserted between baffle and the slide to respectively support on limit structure's bottom plate, the effort drive support of spring removes to micro-gap switch's direction.

Preferably, the two sliding plates are respectively provided with the limiting structures, an insertion channel is formed between the baffles of the two limiting structures at intervals, and the insertion channel is matched with the mounting platform and the spring.

Preferably, the contact support includes a first support portion and a second support portion, the first support portion is provided with an auxiliary moving contact matched with the auxiliary stationary contact, and the mounting platform is disposed on the second support portion.

Preferably, the second support portion includes the backup pad to and set up two curb plates on the backup pad relatively, the backup pad corresponds the position between two curb plates and is equipped with the installation through-hole, mounting platform connects between two relative lateral walls of installation through-hole, and mounting platform with form the installation side opening respectively between other two relative lateral walls of mounting through-hole, two slides of support can pass the installation side opening of mounting platform both sides respectively.

Preferably, the inner sides of the two side plates are respectively provided with a sliding groove, and the sliding grooves on the two side plates are respectively in sliding fit with the two sliding plates.

Preferably, the mounting platform is provided with a positioning boss, and the end part of the spring can be sleeved on the positioning boss for limiting and matching.

Preferably, the depth of the mounting through hole is greater than or equal to the thickness of the top plate.

Preferably, the microswitch is connected with the circuit board assembly, and the circuit board assembly is connected with the contact plate.

Preferably, the contact plate comprises a first annular contact portion and a second annular contact portion connected with one side of the first contact portion, the first contact portion is sleeved on the base, and the second contact portion is connected with the microswitch.

The utility model discloses a contactor auxiliary contact module when the contact supports and drives the support and remove to micro-gap switch, the support pushes down on micro-gap switch under the spring action, and the effort continuation motion of spring can be overcome in the contact support simultaneously, and then converts the long stroke that the contact supported into the short stroke of support, avoids support extrusion micro-gap switch and jamming or damage probably appear.

In addition, integrative support not only can the direct mount on the contact supports, but also can play spacing spring's effect, does not need extra part to support the support mounting on the contact supports, has that the part is small in quantity, with low costs and assemble simple characteristics. In addition, the auxiliary contact modules with different specifications and conventional auxiliary contacts and the auxiliary contact configuration of the micro switch can meet the use requirements of different load grades, particularly the requirements of the conventional load and the working occasions with low voltage, low current, much dust, moisture, vibration and the like.

In addition, the contactor of this embodiment possesses two kinds of auxiliary contact structures simultaneously, can provide the high reliability that the auxiliary contact structure of different grade type realized control system according to different load demands.

Drawings

Fig. 1-2 are schematic structural views of a contactor auxiliary module according to a first embodiment of the present invention;

fig. 3 is a partial enlargement of fig. 2 of the present invention;

fig. 4 is a sectional view showing an internal structure of a contactor assistance module according to a first embodiment of the present invention;

fig. 5 is a schematic view of the assembly of the bracket and the spring according to the first embodiment of the present invention;

fig. 6 is a schematic structural view of a contact holder according to a first embodiment of the present invention;

fig. 7 is a schematic structural view of a bracket according to a first embodiment of the present invention;

fig. 8 is a sectional view showing an internal structure of a contactor assistance module according to a second embodiment of the present invention;

fig. 9 is a schematic view of the assembly of the bracket and the spring according to the second embodiment of the present invention.

Detailed Description

The following embodiments are provided in connection with the accompanying drawings to further illustrate the embodiments of the auxiliary contact module of the contactor according to the present invention. The contactor auxiliary contact module of the present invention is not limited to the description of the following embodiments.

As shown in fig. 1, the utility model discloses a contactor auxiliary contact module, including contact support 2, micro-gap switch 9, support 3 and spring 4, support 3 is including two slides 32 of relative setting to and roof 31 of a body coupling between two slides 32, at least one be equipped with limit structure 30 on the slide 32, be equipped with the mounting platform 22 that corresponds with support 3 on the contact support 2, mounting platform 22 can pass between two slides 32 with roof 31 spacing cooperation, at mounting platform 22 with form the drive space between the limit structure 30, spring 4 can insert the drive space, and by mounting platform 22 and limit structure 30 are spacing respectively, support 3 corresponds the setting with micro-gap switch 9, and the removal that contact support 2 can drive support 3 and press micro-gap switch 9 and dodge micro-gap switch 9.

The utility model discloses a contactor auxiliary contact module when contact support 2 drives support 3 and removes to micro-gap switch 9, support 3 pushes down on micro-gap switch 9 under the effect of spring 4, and spring 4's effort continuation motion can be overcome to contact support 2 simultaneously, and then converts the long stroke of contact support 2 into the short stroke of support 3, avoids support 3 extrusion micro-gap switch and jamming or damage probably appear.

In addition, integrative support 3 not only can the direct mount on contact support 2, but also can play the effect of spacing spring 4, does not need extra part to install support 3 on contact support 2, has that the part is small in quantity, with low costs and assemble simple characteristics. In addition, the contact configuration of the auxiliary contact module with different specifications (conventional auxiliary and micro switch auxiliary) can meet the use requirements of different load grades, and particularly meet the requirements of conventional loads and working occasions with low voltage, low current, much dust, moisture, vibration and the like.

As shown in fig. 1-2 and 5, the contactor of this embodiment includes a housing 1, the contact support 2 may reciprocate in the housing 1, the contact support 2 includes a first support portion 201 and a second support portion 202, the first support portion 201 is provided with an auxiliary moving contact 7 matched with an auxiliary stationary contact 8, the auxiliary stationary contact 8 is disposed on the housing 1, the auxiliary moving contact 7 moves along with the contact support 2 to contact with or separate from the auxiliary stationary contact 8, the mounting platform 22 is disposed on the second support portion 202, the support 3 is movably sleeved on the mounting platform 22, the limiting structure 30 of the support 3 is located between the micro switch 9 and the spring 4, the acting force of the spring 4 drives the support 3 to move towards the micro switch 9, and the support 3 is limited by the mounting platform 22. The microswitch 9 is provided with a push rod 91, the support 3 pushes the push rod 91 under the driving of the contact support 2, and the microswitch 9 is driven by the push rod 91 to switch states. The contactor of the embodiment has two auxiliary contact structures at the same time, wherein one auxiliary contact structure is a conventional direct-acting double-contact structure and is realized by matching the auxiliary moving contact 7 with the auxiliary fixed contact 8, and the second auxiliary contact structure is realized by pushing the micro switch 9 to switch states through the support 3, so that different types of auxiliary contact structures can be provided according to different load requirements to realize high reliability of a control system. Of course, only the second auxiliary contact structure may be provided, all of which belong to the protection scope of the present invention.

Further, the contact holder 2 of the present embodiment includes two first supporting portions 201 and two second supporting portions 202, the two first supporting portions 201 are disposed adjacently, the two second supporting portions 202 are disposed at outer sides of the two first supporting portions 201 oppositely, and the two second supporting portions 202 are respectively provided with the mounting platform 22. It is understood that only the second supporting portion 202 may be provided, that is, only the second auxiliary contact structure may be adopted, or a combination of the two auxiliary contact structures may also be adopted, which falls within the protection scope of the present invention.

As shown in fig. 7, the two sliding plates 32 of this embodiment are respectively provided with the limiting structures 30, the limiting structures 30 are L-shaped, the limiting structures 30 include baffle plates 33 disposed inside the bracket 3, and bottom plates 34 connected between the baffle plates 33 and the sliding plates 32, insertion channels are formed between the baffle plates 33 of the two limiting structures 30 at intervals, the insertion channels are matched with the mounting platform 22 and the springs 4, the mounting platform 22 and the springs 4 can be respectively inserted into the bracket 3 from the insertion channels, and the ends of the springs 4 far away from the mounting platform 22 can be inserted between the baffle plates 33 and the sliding plates 32 of the two limiting structures 30, and respectively abut against the bottom plates 34 of the two limiting structures 30. Of course, the limiting structure 30 may be only provided on one side of the sliding plate 32, and all of them belong to the protection scope of the present invention. As shown in fig. 3, the bracket 3 is firstly sleeved on the corresponding mounting platform 22, and then the spring 4 is inserted into the inner side of the bracket 3.

5-6, the first supporting portion 201 and the second supporting portion 202 are integrally formed, the second supporting portion 202 includes a supporting plate 24, and two side plates 25 oppositely disposed on the supporting plate 24, a cavity for accommodating the bracket 3 is formed between the two side plates 25, the supporting plate 24 is provided with a mounting through hole 26 corresponding to a position between the two side plates 25, the mounting platform 22 is connected between two opposite side walls of the mounting through hole 26, and mounting side holes 27 are respectively formed between the mounting platform 22 and two other opposite side walls of the mounting through hole 26, the two sliding plates 32 of the bracket 3 can respectively pass through the mounting side holes 27 at two sides of the mounting platform 22, so that the bracket 3 can be movably sleeved on the mounting platform 22.

Further, the inner sides of the two side plates 25 are respectively provided with a sliding groove 28, and the sliding grooves 28 on the two side plates 25 are respectively in sliding fit with the two sliding plates 32, so that the function of guiding the support 3 can be achieved, the balance of the support 3 is kept, and the skew and the clamping stagnation are reduced.

Further, a positioning boss 23 is arranged on the mounting platform 22, and the end of the spring 4 can be sleeved on the positioning boss 23 for limiting and matching.

Further, the support plate 24 is provided with two partition plates 29 at a side close to the first support portion 201, and the two partition plates 29 are respectively arranged in the same plane with one side plate 25 and are respectively connected with two sides of the side plate 25.

Further, the depth of the mounting through hole 26 is greater than or equal to the thickness of the top plate 31, and when the bracket 3 does not contact the microswitch, the top plate 31 is flush with the top side of the supporting plate 24, or is positioned inside the mounting through hole 26, so that the bracket 3 is prevented from protruding from the top side of the supporting plate 24.

Further, a circuit board assembly 5 is arranged at the bottom of the shell 1, the micro switch 9 is connected with the circuit board assembly 5, and the circuit board assembly 5 is connected with the contact plate 6. The contact plate 6 comprises a first annular contact part and a second contact part connected with one side of the first contact part, the first contact part is sleeved on the base 1, and the second contact part is connected with the circuit board assembly 5 welded with the microswitch 9.

As shown in fig. 8-9 of the second embodiment, the bracket 3 has the same structure as the first embodiment, except that two oppositely disposed second side plates 250 are disposed between the two side plates 25 on the contact support in the second embodiment, the second side plates 250 replace the side plates 25 to cooperate with the bracket 3, and the mounting angle of the bracket 3 is different from that in the first embodiment, which all belong to the protection scope of the present invention.

It should be noted that, in the description of the present invention, the terms "upper", "lower", "left", "right", "inner", "outer", etc. indicate the directions or positional relationships based on the directions or positional relationships shown in the drawings or the directions or positional relationships that are usually placed when used, and are only for convenience of description, but do not indicate that the device or element to be referred to must have a specific direction, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish one description from another, and are not to be construed as indicating relative importance.

The foregoing is a more detailed description of the present invention, taken in conjunction with the specific preferred embodiments thereof, and it is not intended that the invention be limited to the specific embodiments shown and described. To the utility model belongs to the technical field of ordinary technical personnel, do not deviate from the utility model discloses under the prerequisite of design, can also make a plurality of simple deductions or replacement, all should regard as belonging to the utility model discloses a protection scope.

Claims

1. The utility model provides a contactor auxiliary contact module, includes that the contact supports (2), micro-gap switch (9), support (3) and spring (4), its characterized in that: support (3) are including two slide (32) that set up relatively to and roof (31) of body coupling between two slide (32), at least one be equipped with limit structure (30) on slide (32), be equipped with mounting platform (22) that correspond with support (3) on contact support (2), mounting platform (22) can pass between two slide (32) with roof (31) spacing cooperation, mounting platform (22) with form drive space between limit structure (30), spring (4) are inserted drive space, and by mounting platform (22) and limit structure (30) are spacing respectively, support (3) correspond the setting with micro-gap switch (9), and the removal that contact supported (2) can drive micro-gap support (3) press down switch (9) and dodge micro-gap switch (9).

2. The contactor auxiliary contact module as claimed in claim 1, wherein: limiting structure (30) are including setting up baffle (33) at support (3) inboard to and connect bottom plate (34) between baffle (33) and slide (32), and spring (4) are kept away from mounting platform (22) tip and can be inserted between baffle (33) and slide (32), and support respectively on bottom plate (34) of limiting structure (30), and effort drive support (3) of spring (4) move to micro-gap switch (9)'s direction.

3. The contactor auxiliary contact module as claimed in claim 1, wherein: the two sliding plates (32) are respectively provided with the limiting structures (30), insertion channels are formed between the baffle plates (33) of the two limiting structures (30) at intervals, and the insertion channels are matched with the mounting platform (22) and the springs (4).

4. The contactor auxiliary contact module as claimed in claim 1, wherein: the contact support (2) comprises a first support part (201) and a second support part (202), an auxiliary moving contact (7) matched with an auxiliary fixed contact (8) is arranged on the first support part (201), and the mounting platform (22) is arranged on the second support part (202).

5. The contactor auxiliary contact module of claim 4, wherein: the second support portion (202) includes backup pad (24) to and relative two curb plates (25) that set up on backup pad (24), backup pad (24) correspond the position between two curb plates (25) and are equipped with installation through-hole (26), mounting platform (22) are connected between two relative lateral walls of installation through-hole (26), and at mounting platform (22) with form installation side opening (27) respectively between two other relative lateral walls of installation through-hole (26), two slide (32) of support (3) can pass installation side opening (27) of mounting platform (22) both sides respectively.

6. The contactor auxiliary contact module as claimed in claim 5, wherein: the inner sides of the two side plates (25) are respectively provided with a sliding groove (28), and the sliding grooves (28) on the two side plates (25) are respectively in sliding fit with the two sliding plates (32).

7. The contactor auxiliary contact module of claim 1, wherein: the mounting platform (22) is provided with a positioning boss (23), and the end part of the spring (4) can be sleeved on the positioning boss (23) to be in positioning fit.

8. The contactor auxiliary contact module as claimed in claim 5, wherein: the depth of the mounting through hole (26) is greater than or equal to the thickness of the top plate (31).

9. The contactor auxiliary contact module as claimed in claim 1, wherein: the microswitch (9) is connected with the circuit board assembly (5), and the circuit board assembly (5) is connected with the contact plate (6).

10. The contactor auxiliary contact module as claimed in claim 9, wherein: the contact plate (6) comprises a first annular contact part and a second contact part connected with one side of the first contact part, the first contact part is sleeved on the base (1), and the second contact part is connected with the microswitch (9).