Relay
By setting limit slots and positioning slots on the relay terminal block and using the cooperation of clamping screws and clamping plates, the problem of wire displacement is solved, a stable connection of the wires is achieved, and the normal operation of the relay is ensured.
Patent Information
- Application Number
- CN202423304283.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2034-12-31
AI Technical Summary
In the prior art, the wires are prone to displacement in the relay, resulting in unstable connections and affecting the normal use of the relay.
Limit slots and positioning slots are set on the relay terminal block. The wire is inserted into the positioning slot, and the clamping screw is inserted into the limit slot and pressed into the bottom of the slot. At the same time, the clamping plate and the guide slot are used to ensure that the wire is fixed and does not shift.
This improves the connection stability between the wires and the terminal block, reduces the risk of wire displacement, and ensures the normal use of the relay and the safety of the wires.
Smart Images
Figure CN223743551U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of electrical apparatus, in particular to a relay. BACKGROUND
[0002] The relay is an electric control device, is when input (excitation) the change reaches the prescribed requirement, makes the controlled quantity in the electrical output circuit the predetermined step change one kind of electric appliance, usually applied to the control circuit of automation, plays the automatic regulation, safety protection, conversion circuit etc. in the circuit.
[0003] The relay in the prior art usually includes a relay main body, a wiring slot is arranged on the relay main body, a wiring board is arranged in the wiring slot, a mounting hole is arranged on the relay main body and is in communication with the wiring slot, a compression screw is threadedly connected in the mounting hole, and the compression screw is used to compress the wire on the wiring board.
[0004] However, for copper wires, the inner core of the wire is mostly cylindrical, and since the end of the compression screw and the surface of the wiring board are relatively smooth, when the wire is compressed and fixed by the compression screw, there is a risk of wire displacement, which affects the connection stability of the wire and the wiring board, and further affects the normal use of the relay, and needs to be improved. UTILITY MODEL CONTENTS
[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a relay that can reduce the risk of wire displacement, improve the connection stability of the wire and the wiring board, and thus ensure the normal use of the relay.
[0006] The above technical purpose of the utility model is realized by the following technical scheme: a relay includes a relay main body, a wiring slot is arranged on the relay main body, a wiring board is arranged in the wiring slot, a mounting hole is arranged on the relay main body and is in communication with the wiring slot, and a compression screw is threadedly connected in the mounting hole, the surface of the wiring board is provided with a circular limiting groove and a long strip-shaped positioning groove, the limiting groove and the positioning groove are in communication, the wire can be clamped into the positioning groove, the end of the wire can be located in the limiting groove, the limiting groove is aligned with the compression screw, the compression screw can enter the limiting groove, and the wire is compressed on the groove bottom of the limiting groove.
[0007] In a preferred example, the compression screw can be further configured as follows: the compression screw includes a nut part, a screw rod part and a compression disc, the nut part is integrally connected to the screw rod part, the screw rod part is threadedly matched with the mounting hole, and the compression disc is rotationally connected to one end of the screw rod part away from the nut part.
[0008] The guide block is arranged on the compression disc, the inner side wall of the limiting groove is provided with a guide groove, the length direction of the guide groove is parallel to the depth direction of the limiting groove, the guide block is in sliding fit with the guide groove, and the compression disc is used for compressing and fixing the wire.
[0009] In a preferred example, the compression disc is fixedly connected with a plurality of compression strips on the side away from the screw rod part, the plurality of compression strips are parallel to each other, and the length direction of the compression strip is perpendicular to the length direction of the positioning groove.
[0010] In a preferred example, the bottom of the limiting groove is provided with a plurality of compression grooves, the plurality of compression grooves correspond to the plurality of compression strips one by one, and the compression strip can enter the corresponding compression groove.
[0011] In a preferred example, the compression strip is provided with a protection arc surface on the side away from the compression disc.
[0012] In a preferred example, the outer diameter of the compression disc is greater than the outer diameter of the screw rod part, so as to limit the screw rod part from being rotated out of the mounting hole.
[0013] In a preferred example, the screw cap part is fixedly connected with an elastic retreat stop ring at the edge position of the side facing the screw rod part.
[0014] In summary, the utility model has at least the following beneficial effects:
[0015] The relay can realize the positioning of the wire, reduce the risk of wire displacement, ensure the compression and fixing effect of the fastening screw on the wire, improve the connection stability of the wire and the wiring board, and ensure the normal use of the relay. Meanwhile, the wire is compressed and fixed on the groove bottom of the limiting groove by the compression disc, the relative torsion of the compression disc and the wire is avoided, and the risk of wire damage is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 is a structural schematic diagram of an embodiment;
[0017] Figure 2 is a sectional view of an embodiment;
[0018] Figure 3 is a structural schematic diagram of a wiring board in an embodiment;
[0019] Figure 4 is Figure 2 is an enlarged schematic view of the A area in the embodiment.
[0020] Reference: 1, relay main body; 2, wiring slot; 3, wiring board; 4, mounting hole; 5, compression screw; 51, nut part; 52, screw part; 53, compression disc; 54, retreat ring; 6, limiting groove; 7, positioning groove; 8, guide block; 9, guide groove; 10, compression strip; 11, compression groove; 12, protective camber. DETAILED DESCRIPTION
[0021] The utility model will be further explained in detail below in combination with the drawings.
[0022] Reference Figure 1 , Figure 2 A relay, comprising a relay main body 1, the relay main body 1 is provided with a wiring slot 2, the wiring slot 2 is provided with a wiring board 3, the relay main body 1 is provided with a mounting hole 4 in communication with the wiring slot 2, a compression screw 5 is screw-connected in the mounting hole 4, and the compression screw 5 is used to compress the wire on the wiring board 3.
[0023] Reference Figure 2 , Figure 3 The surface of the wiring board 3 is provided with a circular limiting groove 6 and a long strip-shaped positioning groove 7, the limiting groove 6 is in communication with the positioning groove 7, the limiting groove 6 is aligned with the center position of the positioning groove 7, the wire can be clamped into the positioning groove 7, and the end of the wire can be located in the limiting groove 6, so that the positioning of the wire is realized. At the same time, the limiting groove 6 is aligned with the compression screw 5, and the compression screw 5 can enter the limiting groove 6 and compress the wire to the groove bottom of the limiting groove 6.
[0024] This design can realize the positioning of the wire, reduce the risk of wire displacement, ensure the compression and fixing effect of the fastening screw on the wire, improve the connection stability of the wire and the wiring board 3, and further ensure the normal use of the relay.
[0025] Reference Figure 2 , Figure 4 The compression screw 5 comprises a nut part 51, a screw part 52 and a compression disc 53, the nut part 51 is integrally connected to one end of the screw part 52, the compression disc 53 is rotationally connected to the other end of the screw part 52, the screw part 52 is screw-threaded with the mounting hole 4, and the outer diameter of the compression disc 53 is greater than the outer diameter of the screw part 52, so as to limit the screw part 52 from rotating out of the mounting hole 4, so as to prevent the compression screw 5 from being lost.
[0026] Reference Figure 2 , Figure 4The guide block 8 is integrally connected to the compression disc 53, the inner side wall of the limiting groove 6 is provided with a guide groove 9, the length direction of the guide groove 9 is parallel to the depth direction of the limiting groove 6, and the guide block 8 and the guide groove 9 are in sliding fit, so that the compression disc 53 can only move along the depth direction of the limiting groove 6, and the wire is compressed and fixed on the groove bottom of the limiting groove 6, avoiding relative torsion of the compression disc 53 and the wire, thereby reducing the risk of damage to the wire.
[0027] Referring to Figure 2 , Figure 4 The compression disc 53 is fixedly connected with a plurality of compression strips 10 away from the screw rod part 52, the plurality of compression strips 10 are parallel to each other, and the length direction of the compression strip 10 is perpendicular to the length direction of the positioning groove 7. At the same time, the groove bottom of the limiting groove 6 is provided with a plurality of compression grooves 11, the plurality of compression grooves 11 correspond to the plurality of compression strips 10 one by one, and the compression strip 10 can enter the corresponding compression groove 11.
[0028] When the compression disc 53 compresses and fixes the wire, the plurality of compression strips 10 respectively enter the corresponding compression grooves 11, and the wire is curved under the action of the plurality of compression strips 10 and the compression grooves 11, so as to improve the compression and fixing effect of the wire, thereby improving the connection stability of the wire and the relay.
[0029] Referring to Figure 2 , Figure 4 The side of the compression strip 10 away from the compression disc 53 is provided with a protection arc surface 12, which is used to abut against the wire, thereby reducing the risk of damage to the wire by the compression strip 10, and ensuring the use stability of the wire.
[0030] Referring to Figure 4 The screw cap part 51 is fixedly connected with an elastic stop ring 54 at the edge position of the side facing the screw rod part 52, when the compression disc 53 compresses and fixes the wire, the screw cap part 51 compresses the stop ring 54 on the relay main body 1, at this time, the stop ring 54 is elastically compressed and deformed, so as to play the role of an elastic gasket, so as to realize the stop of the screw rod part 52. In this embodiment, the stop ring 54 is made of elastic materials such as rubber, latex or silicone.
[0031] The specific embodiments are only an explanation of the utility model, and are not a limitation of the utility model, and those skilled in the art can make non-creative contribution modifications to the embodiments according to the needs after reading the specification, but as long as it is within the scope of the claims of the utility model, it is protected by the patent law.
Claims
1. A relay comprising a relay body (1), a wiring slot (2) is arranged on the relay body (1), a wiring board (3) is arranged in the wiring slot (2), a mounting hole (4) is arranged on the relay body (1) and is communicated with the wiring slot (2), and a compression screw (5) is threadedly connected in the mounting hole (4), characterized in that: The surface of the terminal block (3) is provided with a circular limiting groove (6) and a long strip-shaped positioning groove (7), the limiting groove (6) is communicated with the positioning groove (7), the wire can be clamped into the positioning groove (7), and the end of the wire can be located in the limiting groove (6), the limiting groove (6) is aligned with the compression screw (5), and the compression screw (5) can enter the limiting groove (6) and compress the wire to the groove bottom of the limiting groove (6). 2. A relay according to claim 1, characterized in that: The compression screw (5) comprises a screw cap part (51), a screw rod part (52) and a compression disc (53), the screw cap part (51) is integrally connected to the screw rod part (52), the screw rod part (52) is threadedly matched with the mounting hole (4), and the compression disc (53) is rotationally connected to one end of the screw rod part (52) away from the screw cap part (51); The compression disc (53) is provided with a guide block (8), the inner side wall of the limiting groove (6) is provided with a guide groove (9), the length direction of the guide groove (9) is parallel to the depth direction of the limiting groove (6), the guide block (8) is slidably matched with the guide groove (9), and the compression disc (53) is used for compressing and fixing the wire.
3. A relay according to claim 2, characterised in that: A plurality of compression strips (10) are fixedly connected to one side of the compression disc (53) away from the screw rod part (52), a plurality of the compression strips (10) are parallel to each other, and the length direction of the compression strip (10) is perpendicular to the length direction of the positioning groove (7).
4. A relay according to claim 3, characterized in that: The groove bottom of the limiting groove (6) is provided with a plurality of compression grooves (11), a plurality of the compression grooves (11) correspond to a plurality of the compression strips (10) one by one, and the compression strip (10) can enter the corresponding compression groove (11).
5. A relay according to claim 3, characterized in that: The side of the compression strip (10) away from the compression disc (53) is provided with a protective arc surface (12).
6. A relay according to claim 2, characterized in that: The outer diameter of the compression disc (53) is greater than the outer diameter of the screw rod part (52), so as to limit the screw rod part (52) from being rotated out of the mounting hole (4).
7. A relay according to claim 2, characterized in that: The elastic retreat stop ring (54) is fixedly connected to the edge position of the side of the screw cap part (51) towards the screw rod part (52).