Frame type contactor
By adopting a dual-frame structure of frame contactors, allowing debugging without fully assembled housing, the problems of low production and commissioning efficiency and poor consistency of existing contactors are solved, and more efficient production and more consistent products are achieved.
Patent Information
- Application Number
- CN202420536229.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-19
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-03-19
AI Technical Summary
Existing single-phase vacuum contactors require overall removal and adjustment during production and commissioning, resulting in low production efficiency and poor product consistency.
The double-frame structure of frame contactors is adopted. By fixing the contact mechanism, electromagnetic drive mechanism and arc extinguishing cover on the frame, it allows debugging if the shell is not fully assembled, and the shell assembly is carried out after the performance parameters meet the requirements.
Reduce the number of test disassembly and assembly times, improve production efficiency, and ensure product consistency.
Smart Images
Figure CN222562562U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of low-voltage electrical appliances, in particular to a frame-type contactor. Background Art
[0002] Most of the existing single-phase vacuum contactors adopt a single-frame structure, in which the contact mechanism, electromagnetic drive mechanism and arc extinguishing cover are assembled in the frame to form an integrated structure; when the parameters need to be adjusted during the production and debugging process, the contactor needs to be completely dismantled, reassembled after the adjustment, and then the next performance test is carried out until the performance parameters of the product meet the requirements and the test is qualified; and some single contactors need to be disassembled and assembled multiple times during the test process, which affects the production efficiency and leads to poor product consistency. Utility Model Content
[0003] The purpose of the utility model is to provide a frame-type contactor, which mainly solves the technical problems raised in the prior art.
[0004] In order to achieve the above purpose, the utility model provides the following technical solutions:
[0005] A frame-type contactor comprises a frame body, which is arranged as a square frame structure, two groups of brackets are symmetrically fixedly connected on both sides of the inner wall of the frame body, contact mechanisms are arranged on the top ends of the two groups of brackets, the bottom ends of the contact mechanisms are connected to an electromagnetic drive mechanism, the top ends of the frame body are connected to an arc extinguishing cover, the outside of the frame body is fixedly connected to two groups of shells by fasteners, one end of the electromagnetic drive mechanism extends to the outside of the two groups of shells and is provided with a protective cover, and the protective cover is fixedly mounted on the outer surfaces of the two groups of shells.
[0006] Preferably, the contact mechanism comprises two groups of first substrates, the top ends of the two groups of first substrates are fixedly connected to the top ends of the inner walls of the frame, the bottom ends of the two groups of first substrates are respectively vertically fixedly connected to the top ends of the two groups of brackets, and two groups of side plates are fixedly connected to the opposite sides of the two groups of first substrates, and the opposite surfaces of the two groups of side plates are provided with sliding grooves;
[0007] A second substrate is disposed between the two groups of the first substrates, and two groups of sliders are disposed on opposite sides of the second substrate, and the outer surfaces of the two groups of sliders are respectively slidably connected to the inner walls of the slide grooves;
[0008] At least two groups of static contacts are arranged on the opposite surfaces of the two groups of the first substrates, and movable contacts matching the static contacts are arranged on the opposite sides of the second substrate;
[0009] A normally closed contact is formed between the first substrate and the second substrate at a side far from the electromagnetic drive mechanism, and a normally open contact is formed between the first substrate and the second substrate at a side close to the electromagnetic drive mechanism.
[0010] Preferably, the electromagnetic drive mechanism comprises a mounting seat, the mounting seat is fixedly mounted on one side of the frame, a static iron core is arranged in the frame, a coil is wound on the static iron core, a side of the static iron core away from the mounting seat is connected to a moving iron core through an elastic member, an end of the moving iron core away from the elastic member is connected to an L-shaped connecting frame, and the other end of the connecting frame is fixedly connected to the bottom end of the second substrate;
[0011] The elastic member comprises two groups of guide rods, one end of each of the two groups of guide rods is fixedly connected to a side of the static iron core close to the moving iron core, and the other ends of each of the two groups of guide rods respectively penetrate the moving iron core and extend to a side away from the static iron core. The outer surfaces of the two groups of guide rods are sleeved with springs, and the two ends of each of the springs are in contact with the moving iron core and the static iron core respectively.
[0012] The moving iron core and the second substrate always move in the same direction.
[0013] Preferably, a slot is provided at the top of the frame body, and a block is provided at the bottom of the arc extinguishing cover, and the block matches the slot.
[0014] Preferably, two groups of pressing blocks are arranged on two opposite sides of the bottom of the arc-extinguishing cover, and the top of the inner wall of the shell is provided with accommodating grooves matching the pressing blocks.
[0015] Preferably, two groups of main contact pins are arranged on the outer surface of the mounting seat in a horizontal direction, and the two groups of main contact pins are electrically connected to two ends of the coil respectively.
[0016] Preferably, a plurality of groups of auxiliary contact pins are provided on the outer surface of the housing, and the plurality of groups of auxiliary contact pins are electrically connected to the static contacts and the movable contacts respectively.
[0017] Preferably, a mounting groove is provided on one side of the opening of the protective cover, and the mounting grooves are matched with the two groups of main contact pins respectively.
[0018] Preferably, a plurality of groups of mounting plates are fixedly connected to one side close to the opening of the protective cover, and the plurality of groups of mounting plates are fixedly connected to the outer surface of the shell by fastening screws respectively.
[0019] Preferably, a primary foot support and a secondary foot support are provided at the bottom of the shell, and mounting holes are provided at the tops of the primary foot support and the secondary foot support.
[0020] Compared with the prior art, the beneficial effects of the utility model are:
[0021] In the utility model, the frame-type contactor adopts a double-frame structure composed of a frame body and a shell. By fixing the contact mechanism, the electromagnetic drive mechanism and the arc extinguishing cover on the frame body, the product can be debugged without assembling the shell during the production process. After the product performance parameters meet the requirements and the test is qualified, the shell is assembled to complete the overall assembly of the contactor; thereby reducing the number of test disassembly and assembly times, improving production efficiency, and ensuring product consistency. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.
[0023] Figure 1 It is a three-dimensional diagram of the frame-type contactor of the utility model;
[0024] Figure 2 For the utility model Figure 1 Right view of;
[0025] Figure 3 For the utility model Figure 1 Schematic diagram of the structure without the shell and protective cover;
[0026] Figure 4 For the utility model Figure 3 Exploded diagram of
[0027] Figure 5 For the utility model Figure 3 An enlarged structural schematic diagram of a contact mechanism;
[0028] Figure 6 For the utility model Figure 1 Schematic diagram of the enlarged structure of the protective cover.
[0029] In the figure: frame 1, bracket 11, slot 12, contact mechanism 2, first substrate 21, static contact 211, second substrate 22, moving contact 221, slider 222, side plate 23, slide slot 231, electromagnetic drive mechanism 3, mounting seat 31, static iron core 32, moving iron core 33, coil 34, connecting frame 35, elastic member 36, guide rod 361, spring 362, arc extinguishing cover 4, block 41, pressing block 42, shell 5, primary foot support 51, secondary foot support 52, mounting hole 53, protective cover 6, mounting slot 61, mounting plate 62, fastening screw 621, auxiliary contact pin 7, main contact pin 8. DETAILED DESCRIPTION
[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0031] like Figure 1-6 As shown, the utility model provides a frame contactor, including a frame body 1, which is set as a square frame structure, two groups of brackets 11 are symmetrically fixedly connected on both sides of the inner wall of the frame body 1, contact mechanisms 2 are set at the top of the two groups of brackets 11, the bottom of the contact mechanism 2 is connected to the electromagnetic drive mechanism 3, the top of the frame body 1 is connected to the arc extinguishing cover 4, the outside of the frame body 1 is fixedly connected with two groups of shells 5 by fasteners, one end of the electromagnetic drive mechanism 3 extends to the outside of the two groups of shells 5 and is sleeved with a protective cover 6, and the protective cover 6 is fixedly installed on the outer surface of the two groups of shells 5; the frame contactor fixes the contact mechanism 2, the electromagnetic drive mechanism 3 and the arc extinguishing cover 4 on the frame body 1, and the product can be debugged without assembling the shell 5 during the production process. After the product performance parameters meet the requirements and the test is qualified, the shell 5 is assembled to complete the overall assembly of the contactor, thereby reducing the number of test disassembly and assembly times, improving production efficiency, and ensuring product consistency.
[0032] Specifically, the contact mechanism 2 includes two groups of first substrates 21, the top ends of the two groups of first substrates 21 are fixedly connected to the top ends of the inner walls of the frame body 1, the bottom ends of the two groups of first substrates 21 are respectively vertically fixedly connected to the top ends of the two groups of brackets 11, the two groups of side panels 23 are fixedly connected to the opposite sides of the two groups of first substrates 21, and the opposite surfaces of the two groups of side panels 23 are provided with slide grooves 231; a second substrate 22 is arranged between the two groups of first substrates 21, and two groups of sliders 222 are arranged on the opposite sides of the second substrate 22, and the outer surfaces of the two groups of sliders 222 are respectively slidably connected to the inner walls of the slide grooves 231; the two groups of first substrates 21 are fixedly connected to the opposite sides of the two groups of side panels 23, and the two groups of side panels 23 are provided with slide grooves 231. At least two groups of static contacts 211 are arranged on the opposite sides of a substrate 21, and movable contacts 221 matching the static contacts 211 are arranged on the opposite sides of a second substrate 22; the slide groove 231 cooperates with the slider 222 to guide and limit the second substrate 22, and at the same time enhances the contact stability between the contacts; wherein, a normally closed contact is formed between the first substrate 21 and the second substrate 22 away from the electromagnetic drive mechanism 3, and a normally open contact is formed between the first substrate 21 and the second substrate 22 close to the electromagnetic drive mechanism 3; and is used to control the on and off between the control circuits.
[0033] Specifically, the electromagnetic drive mechanism 3 includes a mounting base 31, which is fixedly mounted on one side of the frame 1. A static iron core 32 is arranged in the frame 1, and a coil 34 is wound on the static iron core 32. The side of the static iron core 32 away from the mounting base 31 is connected to the moving iron core 33 through an elastic member 36, and the end of the moving iron core 33 away from the elastic member 36 is connected to an L-shaped connecting frame 35, and the other end of the connecting frame 35 is fixedly connected to the bottom end of the second substrate 22; when the contactor is in use, the main circuit is connected to the coil 34, so that the coil 34 is energized and drives the static iron core 32 to attract the moving iron core 33, and then the moving iron core 33 drives the contact mechanism 2 to operate through the connecting frame 35, so that the normally open contact is closed and the normally closed contact is disconnected.
[0034] The elastic member 36 includes two sets of guide rods 361, one end of each set of guide rods 361 is fixedly connected to the side of the static iron core 32 close to the moving iron core 33, and the other ends of each set of guide rods 361 penetrate the moving iron core 33 and extend to the side away from the static iron core 32. The outer surfaces of the two sets of guide rods 361 are sleeved with springs 362, and the two ends of the springs 362 are in contact with the moving iron core 33 and the static iron core 32 respectively; the moving direction of the moving iron core 33 is always consistent with that of the second substrate 22; when After the coil 34 is energized, the static iron core 32 generates electromagnetic force and attracts the moving iron core 33, and then the moving iron core 33 compresses the spring 362 along the outer surface of the guide rod 361, so that the spring 362 accumulates force, thereby closing the normally open contact and opening the normally closed contact; when the coil 34 is de-energized, the static iron core 32 loses the electromagnetic force, and then the moving iron core 33 is reset under the action of the elastic restoring force of the spring 362, so that the normally open contact is opened and the normally closed contact is closed, thereby realizing the on-off switching of the control circuit.
[0035] Specifically, a card slot 12 is provided at the top of the frame 1, and a card block 41 matching the card slot 12 is provided at the bottom of the arc extinguishing cover 4; when in use, the card block 41 at the bottom of the arc extinguishing cover 4 can be directly carded into the card slot 12 at the top of the frame 1, which is convenient for installation and improves the integrity of the contactor.
[0036] Specifically, two groups of pressing blocks 42 are arranged on opposite sides of the bottom of the arc-extinguishing hood 4, and the top of the inner wall of the shell 5 is provided with a receiving groove matching the pressing blocks 42; during assembly, the pressing blocks 42 at the bottom of the arc-extinguishing hood 4 can be crimped into the receiving grooves of the shell 5 to prevent the arc-extinguishing hood 4 from detaching from the top of the shell 5 during use, thereby enhancing the structural stability.
[0037] Specifically, two groups of main contact pins 8 are arranged on the outer surface of the mounting seat 31 in the horizontal direction. The two groups of main contact pins 8 are electrically connected to the two ends of the coil 34 respectively, and are used to connect the main circuit.
[0038] Specifically, a plurality of groups of auxiliary contact pins 7 are disposed on the outer surface of the housing 5 , and the plurality of groups of auxiliary contact pins 7 are electrically connected to the stationary contact 211 and the movable contact 221 , respectively, and are used to connect the control circuit.
[0039] Specifically, a mounting groove 61 is provided on one side of the opening of the protective cover 6, and the mounting grooves 61 are matched with the two groups of main contact pins 8 respectively; the protective cover 6 can provide dust protection for the coil 34, and at the same time, the coil 34 can be separately disassembled and maintained outside the shell 5 without opening the shell 5 as a whole, which is convenient for use.
[0040] Specifically, a plurality of mounting plates 62 are fixedly connected to one side close to the opening of the protective cover 6 , and the plurality of mounting plates 62 are fixedly connected to the outer surface of the housing 5 by means of fastening screws 621 , respectively, so as to facilitate the removal of the protective cover 6 .
[0041] Specifically, a primary foot support 51 and a secondary foot support 52 are provided at the bottom of the housing 5 , and mounting holes 53 are provided at the tops of the primary foot support 51 and the secondary foot support 52 , which are used to fix and install the contactor.
[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution 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 this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.
Claims
1. Frame type contactor, characterized by: The invention comprises a frame (1), wherein the frame (1) is arranged as a square frame structure, two groups of brackets (11) are symmetrically fixedly connected to the inner walls of the frame (1), the top ends of the two groups of brackets (11) are provided with contact mechanisms (2), the bottom ends of the contact mechanisms (2) are connected to electromagnetic drive mechanisms (3), the top ends of the frame (1) are connected to arc extinguishing covers (4), the outside of the frame (1) is fixedly connected to two groups of shells (5) via fasteners, one end of the electromagnetic drive mechanism (3) extends to the outside of the two groups of shells (5) and is sleeved with protective covers (6), and the protective covers (6) are fixedly mounted on the outer surfaces of the two groups of shells (5).
2. The frame-type contactor according to claim 1, characterized in that: The contact mechanism (2) comprises two groups of first substrates (21), the top ends of the two groups of first substrates (21) are fixedly connected to the top ends of the inner walls of the frame (1), the bottom ends of the two groups of first substrates (21) are respectively vertically fixedly connected to the top ends of the two groups of brackets (11), and two groups of side plates (23) are fixedly connected to the opposite sides of the two groups of first substrates (21), and the opposite surfaces of the two groups of side plates (23) are provided with sliding grooves (231); A second substrate (22) is arranged between the two groups of the first substrates (21), two groups of sliding blocks (222) are arranged on opposite sides of the second substrate (22), and the outer surfaces of the two groups of sliding blocks (222) are respectively slidably connected to the inner walls of the sliding grooves (231); At least two groups of static contacts (211) are arranged on the opposite surfaces of the two groups of the first substrates (21), and movable contacts (221) matching the static contacts (211) are arranged on opposite sides of the second substrate (22); A normally closed contact is formed between the first substrate (21) and the second substrate (22) on a side away from the electromagnetic drive mechanism (3), and a normally open contact is formed between the first substrate (21) and the second substrate (22) on a side close to the electromagnetic drive mechanism (3).
3. The frame type contactor according to claim 2, characterized in that: The electromagnetic drive mechanism (3) comprises a mounting seat (31), the mounting seat (31) is fixedly mounted on one side of the frame (1), a static iron core (32) is arranged in the frame (1), a coil (34) is wound around the static iron core (32), a side of the static iron core (32) away from the mounting seat (31) is connected to a moving iron core (33) via an elastic member (36), an end of the moving iron core (33) away from the elastic member (36) is connected to an L-shaped connecting frame (35), and the other end of the connecting frame (35) is fixedly connected to the bottom end of the second substrate (22); The elastic member (36) comprises two groups of guide rods (361), one end of the two groups of guide rods (361) are respectively fixedly connected to a side of the static iron core (32) close to the moving iron core (33), the other ends of the two groups of guide rods (361) respectively penetrate the moving iron core (33) and extend to a side away from the static iron core (32), the outer surfaces of the two groups of guide rods (361) are both sleeved with springs (362), and the two ends of the springs (362) are respectively in contact with the moving iron core (33) and the static iron core (32); The moving iron core (33) and the second substrate (22) always move in the same direction.
4. The frame type contactor according to claim 1, characterized in that: The top end of the frame (1) is provided with a card slot (12), and the bottom end of the arc extinguishing cover (4) is provided with a card block (41), and the card block (41) matches the card slot (12).
5. The frame type contactor according to claim 1, characterized in that: Two groups of pressing blocks (42) are arranged on opposite sides of the bottom of the arc extinguishing cover (4), and the top of the inner wall of the shell (5) is provided with a receiving groove matching the pressing blocks (42).
6. The frame type contactor according to claim 3, characterized in that: Two groups of main contact pins (8) are arranged on the outer surface of the mounting seat (31) in a horizontal direction, and the two groups of main contact pins (8) are electrically connected to two ends of the coil (34) respectively.
7. The frame type contactor according to claim 2, characterized in that: The outer surface of the housing (5) is provided with a plurality of groups of auxiliary contact pins (7), and the plurality of groups of auxiliary contact pins (7) are electrically connected to the stationary contact (211) and the movable contact (221) respectively.
8. The frame type contactor according to claim 6, characterized in that: One side of the opening of the protective cover (6) is provided with a mounting groove (61), and the mounting groove (61) is matched with the two groups of main contact pins (8) respectively.
9. The frame-type contactor according to claim 8, characterized in that: A plurality of groups of mounting plates (62) are fixedly connected to one side close to the opening of the protective cover (6), and the plurality of groups of mounting plates (62) are fixedly connected to the outer surface of the housing (5) via fastening screws (621) respectively.
10. The frame type contactor according to claim 1, characterized in that: The bottom of the shell (5) is provided with a primary foot support (51) and a secondary foot support (52), and the tops of the primary foot support (51) and the secondary foot support (52) are both provided with mounting holes (53).