Dynamic and static contact structure for magnetic latching relay
By opening a perforation at one end of the shrapnel away from the movable contact plate and setting a fixed sheet to make the shrapnel relatively fixed from the moving block, the problem of the shrapnel being separated from the static contact plate due to vibration is solved, the stable connection of the circuit is ensured, and the normal use performance of the magnetic holding relay is improved.
Patent Information
- Application Number
- CN202420183448.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-24
- Publication Date
- 2025-03-04
- Estimated Expiration
- 2034-01-24
AI Technical Summary
The shrapnel in the magnetic holding relay is easily separated from the static contact plate due to vibration, causing the circuit to be disconnected and affecting the normal use of the relay.
By opening a perforation at one end of the shrapnel away from the moving contact plate and setting a fixing piece on the perforation hole wall, the shrapnel and the moving block are relatively fixed, ensuring that the shrapnel can still be connected stably when vibrating.
It effectively prevents the shrapnel from being separated from the static contact plate due to vibration, ensures stable connection of the circuit, and improves the normal use performance of the magnetic holding relay.
Smart Images
Figure CN222562573U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of relays, and in particular to a moving and stationary contact structure for a magnetic latching relay. Background Art
[0002] A magnetic latching relay is an electrical control device that uses a magnetic field to keep the switch in an open or closed state. The moving and static contact structure is an important structure in a magnetic latching relay. The circuit is connected by the abutment of the moving contact and the static contact, and the circuit is closed by the disconnection of the moving contact and the static contact.
[0003] In the related technology, the moving and static contact structure includes a moving block, a moving contact piece and a static contact piece. The moving contact piece includes a moving touch plate and a spring. The moving touch plate is arranged on the moving block. One end of the spring is arranged on the moving touch plate. A moving contact point is arranged on the other end of the spring. When the moving contact point abuts against the static contact piece, the two circuits are connected.
[0004] The driving structure in the magnetic latching relay drives the moving block to move, and the moving block drives the spring to move through the moving contact plate, so that the spring contacts the static contact. Since one end of the spring is arranged on the moving contact plate, when the magnetic latching relay vibrates, the end of the spring away from the moving contact plate may vibrate, causing the moving contact and the static contact to separate, thus disconnecting the two circuits and affecting the normal use of the magnetic latching relay. Utility Model Content
[0005] In order to improve the problem that the spring piece is easily separated from the static contact piece due to vibration, the present application provides a moving and static contact structure for a magnetic latching relay.
[0006] The present application provides a moving and static contact structure for a magnetic latching relay, which adopts the following technical solution:
[0007] A moving and static contact structure for a magnetic holding relay comprises a moving block, a moving contact piece and a static contact piece, wherein the moving contact piece comprises a moving contact plate and a spring piece, wherein the moving contact plate is arranged on the moving block, the spring piece is arranged on the moving contact plate, a moving contact point is arranged on the spring piece, a through hole is opened on the moving block for the spring piece to pass through, and an end of the spring piece away from the moving contact plate passes through the through hole.
[0008] By adopting the above technical solution, the end of the spring sheet away from the moving touch plate passes through the through hole, and the hole wall of the through hole restricts the spring sheet, so that the spring sheet and the moving block are relatively fixed, that is, the two ends of the spring sheet can be fixed on the moving block and the moving touch plate respectively. When the spring sheet vibrates, the two ends of the spring sheet are fixed, so that the moving contact on the spring sheet can be stably connected to the static contact sheet.
[0009] Optionally, the spring sheet is provided with a fixing sheet for inserting into the through hole, the fixing sheet is elastic, and the fixing sheet is arranged on the side of the spring sheet away from the static contact sheet. When the fixing sheet abuts against the hole wall of the through hole, the spring sheet abuts against the hole wall of the through hole close to the static contact sheet.
[0010] By adopting the above technical solution, the fixing plate is located on the side of the spring plate away from the static contact plate, and the fixing plate is elastic. When the fixing plate abuts against the hole wall of the perforation, the fixing plate drives the spring plate to move toward the static contact plate, so that the spring plate can abut against the hole wall of the perforation close to the static contact plate, so that the spring plate can stably abut against the static contact plate, preventing the spring plate from moving due to vibration.
[0011] Optionally, a mounting groove is provided on the moving touch plate, and a groove wall of the mounting groove matches a mounting block in the magnetic holding relay housing. When the mounting block is inserted into the mounting groove, the moving touch plate is installed in the magnetic holding relay housing.
[0012] By adopting the above technical solution, a mounting groove is opened on the moving touch plate, and the groove wall of the mounting groove cooperates with the mounting block in the magnetic holding relay housing, so that the moving touch plate can be stably installed in the housing, preventing the staff from installing the moving touch plate in the wrong position.
[0013] Optionally, a limit block is provided on the stationary contact piece, and the limit block cooperates with a limit groove in the magnetic latching relay housing. When the limit block is inserted into the limit groove, the stationary contact piece is installed in the magnetic latching relay housing.
[0014] By adopting the above technical solution, a limit block is provided on the static contact piece, and the limit block cooperates with the limit groove in the magnetic holding relay housing, so that the limit block can be stably installed in the housing to prevent the static contact piece from detaching from the housing, so that the static contact piece can be smoothly installed in the housing.
[0015] Optionally, a shielding block is provided on the moving touch plate, and the shielding block is used to shield the gap between the moving touch plate and the housing of the magnetic latching relay.
[0016] By adopting the above technical solution, when the moving touch plate is installed on the magnetic holding relay housing, the staff needs to apply glue to the gap between the moving touch plate and the magnetic holding relay housing so that the moving touch plate can be stably fixed relative to the magnetic holding relay housing. Since the blocking block blocks the gap between the moving touch plate and the magnetic holding relay housing, the blocking block can prevent the glue from entering the interior of the magnetic holding relay housing along the gap, thereby preventing the glue from affecting the normal operation of the magnetic holding relay.
[0017] Optionally, a stop block is provided on the stationary contact piece, and the stop block is used to block the gap between the stationary contact piece and the housing of the magnetic latching relay.
[0018] By adopting the above technical solution, when the static contact is installed on the magnetic holding relay housing, the staff needs to apply glue to the gap between the static contact and the magnetic holding relay housing to allow the static contact to be stable and relatively fixed. Since the stop block is arranged on the static contact, the stop block blocks the gap between the static contact and the housing, so that the stop block can prevent the glue from entering the interior of the magnetic holding relay housing along the gap, thereby preventing the glue from affecting the normal operation of the magnetic holding relay.
[0019] Optionally, a fixing rod is provided on the moving touch plate, the spring piece is fixed on the fixing rod, and the fixing rod and a fixing groove in the housing of the magnetic latching relay cooperate with each other.
[0020] By adopting the above technical solution, the spring sheet is fixed on the fixing rod, and the fixing rod and the fixing groove in the magnetic latching relay housing cooperate with each other, so that the spring sheet can be stably installed in the housing and the spring sheet will not be displaced in the housing.
[0021] Optionally, a flow hole is provided on the moving touch plate.
[0022] By adopting the above technical solution, flow holes are opened on the moving touch plate, so that the air in the shell can flow to each other, avoiding the phenomenon of local overtemperature in the shell, so that the temperature in the shell can be relatively stable, allowing the magnetic holding relay to operate stably.
[0023] Optionally, an extension plate is provided on the moving block, and the extension plate abuts against a side of the spring piece facing the static contact piece.
[0024] By adopting the above technical solution, the extension plate abuts against the side of the spring piece facing the static contact piece, so that the spring piece is restricted by the extension plate to prevent the spring piece from moving in the direction of the static contact piece. When the moving block moves in the direction away from the static contact piece, the moving block drives the spring piece to move. Since the spring piece will not bend in the direction of the static contact piece, the spring piece can be directly separated from the static contact piece, so as to quickly disconnect the two circuits.
[0025] In summary, the present application includes at least one of the following beneficial technical effects:
[0026] 1. The end of the spring sheet away from the moving touch plate passes through the through hole so that the spring sheet and the moving block can be fixed to each other. When the spring sheet shakes, the two ends of the spring sheet are fixed so that the moving contact point on the spring sheet can be stably connected to the static contact sheet, avoiding shaking of the end of the spring sheet away from the moving touch plate.
[0027] 2. When the moving touch plate is installed on the magnetic latching relay housing, the staff needs to apply glue to the gap between the moving touch plate and the magnetic latching relay housing so that the moving touch plate can be stably fixed in the housing. Since the blocking block blocks the gap between the moving touch plate and the magnetic latching relay housing, the blocking block prevents glue from entering the housing through the gap, thereby allowing the magnetic latching relay to operate normally. BRIEF DESCRIPTION OF THE DRAWINGS
[0028] Figure 1 It is a schematic diagram of the structure of an embodiment of the present application;
[0029] Figure 2 is an exploded schematic diagram highlighting the moving touch panel in an embodiment of the present application;
[0030] Figure 3 It is a structural schematic diagram highlighting the movable hole in the embodiment of the present application.
[0031] Figure numerals: 1, moving block; 11, through hole; 12, moving hole; 13, extension plate; 2, moving contact piece; 21, moving touch plate; 211, blocking block; 212, mounting groove; 22, spring piece; 221, fixing piece; 23, fixing rod; 24, flow hole; 25, moving contact; 3, stationary contact piece; 31, stationary contact; 32, stop block; 33, limit block; 4, shell; 41, fixing groove; 42, limit groove; 43, mounting block. DETAILED DESCRIPTION
[0032] The following is combined with Figure 1-3 This application is described in further detail.
[0033] This embodiment discloses a moving and static contact structure for a magnetic latching relay. Figure 1 and Figure 2 A moving and static contact structure for a magnetic latching relay includes a moving block 1, a moving contact piece 2 and a static contact piece 3. The moving contact piece 2 includes a moving contact plate 21 and a spring piece 22. A plurality of fixing rods 23 are stamped and formed on the moving contact plate 21. The plurality of fixing rods 23 are arranged in an array along the width direction of the moving contact plate 21. The fixing rod 23 passes through the spring piece 22, and the spring piece 22 and the plurality of fixing rods 23 are fixed to each other. A fixing groove 41 for inserting the fixing rod 23 is provided in the housing 4 of the magnetic latching relay. When the fixing rod 23 is inserted into the fixing groove 41, the moving contact plate 21 is installed in the housing 4.
[0034] Reference Figure 2 and Figure 3A mounting groove 212 is provided on the surface of the movable touch panel 21, and a mounting block 43 for inserting into the mounting groove 212 is integrally formed on the surface of the housing 4. When the mounting block 43 is inserted into the mounting groove 212, the fixing rod 23 is inserted into the fixing groove 41, and the movable touch panel 21 is installed on the housing 4. A flow hole 24 is provided on the surface of the movable touch panel 21, and the flow hole 24 is provided for air circulation to prevent the problem of excessively high local temperature in the housing 4.
[0035] Reference Figure 3 A moving contact 25 is fixedly connected to the surface of the spring piece 22 facing the static contact piece 3, and a static contact 31 is fixedly connected to the surface of the static contact piece 3 facing the spring piece 22. When the moving contact 25 abuts against the static contact 31, the two circuits are connected to each other.
[0036] Reference Figure 2 and Figure 3 The surface of the moving block 1 is provided with a through hole 11 for the spring piece 22 to pass through, and the surface of the moving block 1 is provided with a moving hole 12 for the moving contact plate 21 to pass through. When the moving contact piece 2 and the stationary contact piece 3 are mounted on the housing 4 of the magnetic latching relay, one end of the moving contact plate 21 passes through the housing 4, and the moving block 1 slides inside the housing 4. When the moving block 1 slides, the moving contact plate 21 is restricted by the housing 4 and does not move in the moving hole 12, and the moving block 1 drives the spring piece 22 to move through the hole wall of the through hole 11, so as to achieve the separation or abutment of the moving contact 25 and the stationary contact 31.
[0037] Reference Figure 3 A fixing piece 221 for inserting into the through hole 11 is fixedly connected to the fixing rod 23. The fixing piece 221 is located on the side of the spring piece 22 away from the static contact piece 3, and the fixing piece 221 has elastic deformation capability. When the fixing piece 221 abuts against the hole wall of the through hole 11 away from the static contact piece 3, the spring piece 22 abuts against the hole wall of the through hole 11 toward the static contact piece 3, so that the moving contact 25 can stably abut against the static contact 31.
[0038] Reference Figure 3 An extension plate 13 is integrally formed on the surface of the moving block 1, and the extension plate 13 abuts against the side of the spring piece 22 facing the stationary contact piece 3. When the moving block 1 moves in a direction away from the stationary contact piece 3, the extension plate 13 can drive the spring piece 22 to move in a direction away from the stationary contact piece 3, thereby preventing the spring piece 22 from bending in the direction of the stationary contact piece 3, thereby preventing the stationary contact 31 and the moving contact 25 from being separated in time.
[0039] Reference Figure 1A blocking block 211 is integrally formed on the surface of the moving touch panel 21, and the blocking block 211 can block the gap between the moving touch panel 21 and the housing 4, so as to prevent glue from entering the housing 4 from the gap between the moving touch panel 21 and the housing 4 during installation. A stop block 32 is integrally formed on the surface of the stationary contact piece 3, and the stop block 32 can block the gap between the stationary contact piece 3 and the housing 4, so as to prevent glue from entering the housing 4 from the gap between the stationary contact piece 3 and the housing 4 during installation.
[0040] Reference Figure 2 Two stop blocks 33 are integrally formed on the surface of the static contact piece 3, and the two stop blocks 33 are arranged in an array along the width direction of the static contact piece 3. A stop groove 42 is provided on the inner wall of the housing 4, and the stop groove 42 penetrates to the side of the housing 4, and the two stop blocks 33 are inserted into the same stop groove 42. When the stop block 33 is inserted into the stop groove 42, the static contact piece 3 is installed in the housing 4.
[0041] The implementation principle of the moving and static contact structure for a magnetic latching relay in the embodiment of the present application is as follows: when the moving block 1 moves toward the static contact piece 3, the moving block 1 drives the spring piece 22 to move, so that the moving contact 25 and the static contact 31 abut against each other, thereby realizing the connection between the two circuits.
[0042] Unless otherwise defined, the technical terms or scientific terms used in this application should be understood by people with ordinary skills in the field to which this application belongs. The words "first", "second", "third" and similar words used in the specification and claims of this application do not indicate any order, quantity or importance, but are only used to distinguish different components. "One" or "one" and similar words do not indicate a quantitative limit, but indicate that there is at least one. "Include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0043] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, improvements, etc. made within the design concept of the present application should be included in the protection scope of the present application.
Claims
1. A moving and stationary contact structure for a magnetic latching relay, comprising a moving block (1), a moving contact piece (2) and a stationary contact piece (3), wherein the moving contact piece (2) comprises a moving contact plate (21) and a spring piece (22), wherein the moving contact plate (21) is arranged on the moving block (1), the spring piece (22) is arranged on the moving contact plate (21), and a moving contact point (25) is arranged on the spring piece (22), characterized in that: The moving block (1) is provided with a through hole (11) for the spring sheet (22) to pass through, and one end of the spring sheet (22) away from the moving touch plate (21) passes through the through hole (11).
2. The moving and static contact structure for a magnetic latching relay according to claim 1, characterized in that: The spring sheet (22) is provided with a fixing sheet (221) for inserting into the through hole (11); the fixing sheet (221) is elastic and is arranged on a side of the spring sheet (22) away from the static contact sheet (3); when the fixing sheet (221) abuts against the hole wall of the through hole (11), the spring sheet (22) abuts against the hole wall of the through hole (11) close to the static contact sheet (3).
3. The moving and static contact structure for a magnetic latching relay according to claim 1, characterized in that: The movable touch plate (21) is provided with a mounting groove (212), the groove wall of the mounting groove (212) matches with a mounting block in the housing of the magnetic latching relay, and when the mounting block is inserted into the mounting groove (212), the movable touch plate (21) is mounted in the housing of the magnetic latching relay.
4. The moving and static contact structure for a magnetic latching relay according to claim 1, characterized in that: The static contact piece (3) is provided with a limit block (33), and the limit block (33) cooperates with a limit groove in a magnetic latching relay housing. When the limit block (33) is inserted into the limit groove, the static contact piece (3) is installed in the magnetic latching relay housing.
5. The moving and static contact structure for a magnetic latching relay according to claim 1, characterized in that: The moving touch plate (21) is provided with a shielding block (211), and the shielding block (211) is used to shield the gap between the moving touch plate (21) and the housing of the magnetic latching relay.
6. The moving and static contact structure for a magnetic latching relay according to claim 1, characterized in that: A stop block (32) is provided on the stationary contact piece (3), and the stop block (32) is used to cover the gap between the stationary contact piece (3) and the housing of the magnetic latching relay.
7. The moving and static contact structure for a magnetic latching relay according to claim 1, characterized in that: The movable touch plate (21) is provided with a fixing rod (23), the spring sheet (22) is fixed on the fixing rod (23), and the fixing rod (23) and the fixing groove in the housing of the magnetic latching relay cooperate with each other.
8. The moving and static contact structure for a magnetic latching relay according to claim 1, characterized in that: The movable touch plate (21) is provided with a flow hole (24).
9. The moving and static contact structure for a magnetic latching relay according to claim 1, characterized in that: An extension plate (13) is provided on the moving block (1), and the extension plate (13) abuts against a side of the elastic sheet (22) facing the stationary contact sheet (3).