A wobbler contact

Abstract

The utility model discloses a kind of plum blossom contacts, it is related to plum blossom contact technical field, including contact patch and temperature sensor, the outside of contact patch is fixedly connected with arc spring, the inside of contact patch is equipped with mounting groove, the inside of mounting groove is installed with rotating rod, and the end of rotating rod is installed with latch, the outer end of contact patch is provided with spring groove, spring ring is provided in the inside of spring groove, the inside of spring groove is provided with receiving groove, the inside of receiving groove is provided with elastic ring, the outside of temperature sensor is fixed with connecting band, the outer end of temperature sensor is provided with probe, contact patch is arranged at the inside of spring ring with equal angle, arc spring is symmetrically arranged about the centre line of contact patch.The plum blossom contact, after inwardly retracted contact patch, it is convenient for contact patch to reset quickly by arc spring arranged in equal angle up and down, temperature sensor is conveniently installed using the connection of elastic ring and receiving groove.

Description

Technical Field

[0001] This utility model relates to the field of plum blossom contact technology, specifically a plum blossom contact. Background Technology

[0002] Plum blossom contacts are used in medium-voltage switchgear or high-voltage vacuum circuit breakers. They are usually composed of a bracket, a ring spring and multiple contact pieces. During installation, the contacts encounter great resistance during insertion, making them difficult to insert. To solve this problem, a telescopic bracket is set up to move the position of the contact pieces.

[0003] Chinese Patent CN205104429U discloses an easy-to-plug plum blossom contact, comprising a bracket, a ring spring, and multiple contact pieces. The bracket is a telescopic structure, including multiple bracket units that match and snap onto the contact pieces. A telescopic component is provided between adjacent bracket units, comprising a hinge arm A and a hinge arm B. Hinged arms A and B are hinged via a hinge shaft, and each hinge arm A and B is hinged to two adjacent bracket units via a hinge shaft. Through holes are provided on the sides of hinge arms A and / or B at positions matching the hinge shaft, and a cylindrical rod passes through the through holes and is fixed within the circular groove of the hinge shaft. This easy-to-plug plum blossom contact, without affecting contact performance, avoids the pushing resistance when inserting the stationary contact, prevents the switch from tilting backward during insertion, and improves product stability.

[0004] Based on existing solutions and actual production and processing, the existing plum blossom contact requires a cylindrical rod to fix the contact after it retracts inward, which is inconvenient for the contact to quickly reset and for installing a temperature sensor. Therefore, we propose a plum blossom contact to solve the problems mentioned above. Utility Model Content

[0005] The purpose of this utility model is to provide a plum blossom contact to solve the problem mentioned in the background art that the existing plum blossom contact requires a cylindrical rod to fix the contact after it is retracted inward, which makes it inconvenient for the contact to quickly reset and for installing a temperature sensor.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a plum blossom contact, comprising a contact piece and a temperature sensor:

[0007] An arc-shaped spring is fixedly connected to the outer side of the contact piece, and an installation groove is provided inside the contact piece. A rotating rod is installed inside the installation groove, and a pin is installed at the end of the rotating rod.

[0008] The outer end of the contact piece is provided with a spring groove, the inside of the spring groove is provided with a spring ring, the inner side of the spring groove is provided with a receiving groove, and the inside of the receiving groove is provided with an elastic ring.

[0009] A connecting strap is fixed to the outer side of the temperature sensor, and a probe is provided at the outer end of the temperature sensor.

[0010] Using the above technical solution, after the contact piece is retracted inward, the contact piece can be quickly reset by an arc spring set at equal angles, and the connection between the elastic ring and the receiving groove facilitates the installation of the temperature sensor.

[0011] Preferably, the contact pieces are arranged at equal angles on the inner side of the spring coil, and the equally arranged contact pieces and the arc-shaped spring form a circular structure.

[0012] Preferably, the arc-shaped springs are symmetrically arranged about the center line of the contact piece, so that the arc-shaped springs are installed on both sides of the contact piece.

[0013] Preferably, the rotating rod is rotatably mounted on the contact piece via a pin, thereby rotatably mounting the rotating rod on the contact piece.

[0014] Preferably, the receiving groove is formed inside the contact piece, and the depth of the receiving groove is greater than the radial thickness of the elastic ring, so as to prevent the elastic ring from coming out of the receiving groove when the contact piece retracts inward.

[0015] Preferably, the elastic ring and the connecting strip are connected by adhesive bonding. After the elastic ring is installed, the connecting strip can be installed on the outside of the contact piece.

[0016] Preferably, the spring coil is installed at both the top and bottom of the contact piece to strengthen the connection of the contact piece.

[0017] Preferably, the probe is attached to the outer surface of the contact piece, and the temperature of the contact piece is detected by the probe.

[0018] Compared with the prior art, the beneficial effects of this utility model are: after the contact piece retracts inward, the contact piece can be quickly reset by the arc springs set at equal angles, and the connection between the elastic ring and the receiving groove facilitates the installation of the temperature sensor.

[0019] 1. The arc spring is symmetrically arranged about the center line of the contact piece. The contact piece and the arc spring form a circular structure. The contact piece is drawn inward to facilitate the insertion of the plum blossom contact. When the contact piece is released, it is drawn back and the contact piece is easily and quickly reset under the elastic action of the arc spring.

[0020] 2. The elastic ring is installed on the outside of the contact piece through the receiving groove. The depth of the receiving groove is greater than the radial thickness of the elastic ring. The connection between the elastic ring and the connecting strip is by adhesive bonding. After the elastic ring is put on the receiving groove, the temperature sensor can be installed. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0022] Figure 1 This is a schematic diagram of the first axial side structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the second axial side structure of the present invention;

[0024] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0025] Figure 4 This is a schematic diagram of the connection structure between the connecting strip and the elastic ring of this utility model;

[0026] Figure 5 This is a top view of the structure of this utility model.

[0027] In the diagram: 1. Contact piece; 2. Arc spring; 3. Rotating rod; 4. Pin; 5. Receiving groove; 6. Elastic ring; 7. Temperature sensor; 8. Connecting strip; 9. Probe; 10. Spring ring; 11. Spring groove; 12. Mounting groove. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model, so that the implementation process of how the present application uses technical means to solve technical problems and achieve technical effects can be fully understood and implemented accordingly. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0029] The existing plum blossom contact requires a cylindrical rod to fix the contact piece 1 after it is retracted inward, which makes it inconvenient for the contact piece 1 to be quickly reset and for the temperature sensor 7 to be installed. In order to solve this technical problem, this embodiment discloses the following technical content.

[0030] Please see Figures 1-5 A plum blossom contact includes a contact piece 1, an arc spring 2, a rotating rod 3, a pin 4, a receiving groove 5, an elastic ring 6, a temperature sensor 7, a connecting strip 8, a probe 9, a spring ring 10, a spring groove 11, and a mounting groove 12.

[0031] An arc spring 2 is fixedly connected to the outer side of the contact piece 1. The arc spring 2 is symmetrically arranged about the center line of the contact piece 1. An installation groove 12 is opened inside the contact piece 1. A rotating rod 3 is installed inside the installation groove 12, and a pin 4 is installed at the end of the rotating rod 3. The rotating rod 3 is rotatably installed on the contact piece 1 through the pin 4. The rotating rod 3 is connected to the other rotating rod 3 through the pin 4.

[0032] A spring groove 11 is provided at the outer end of the contact piece 1, and a spring ring 10 is provided inside the spring groove 11. The contact piece 1 is set at an equal angle inside the spring ring 10. The spring ring 10 is installed at both the top and bottom ends of the contact piece 1. A receiving groove 5 is provided inside the spring groove 11, and an elastic ring 6 is provided inside the receiving groove 5. The receiving groove 5 is opened inside the contact piece 1, and the depth dimension of the receiving groove 5 is greater than the radial thickness dimension of the elastic ring 6.

[0033] A connecting strip 8 is fixed to the outer side of the temperature sensor 7, and a probe 9 is provided at the outer end of the temperature sensor 7. The elastic ring 6 is connected to the connecting strip 8 by adhesive bonding, and the probe 9 is attached to the outer side of the contact piece 1.

[0034] When installing the plum blossom contact, the worker uses his hand or a tool to pull the contact piece 1, which is set at an equal angle, inward. The arc spring 2 is squeezed, and the rotating rod 3 rotates inside the mounting groove 12. The rotating rod 3 rotates with each other, reducing the distance between the contact pieces 1 and thus making it easier to insert the plum blossom contact.

[0035] After inserting the plum blossom contact, release contact piece 1. Under the elastic action of the arc spring 2, contact piece 1 opens, as shown. Figure 3 As shown, by restoring to the initial state and fixing the foremost rotating rod 3 with screws, the contact piece 1 can be more stably limited;

[0036] When installing the temperature sensor 7, the connecting strip 8 on the temperature sensor 7 is attached to the elastic ring 6. The elastic ring 6 is inserted into the inside of the receiving groove 5. The temperature of the contact piece 1 is detected by the temperature sensor 7 and the probe 9. When the contact piece 1 retracts inward, the elastic ring 6 retracts with the contact piece 1, and the temperature sensor 7 and the connecting strip 8 move inward.

[0037] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art, and the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here.

[0038] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A plum blossom contact, comprising a contact piece (1) and a temperature sensor (7), characterized in that: An arc spring (2) is fixedly connected to the outer side of the contact piece (1). An installation groove (12) is provided inside the contact piece (1). A rotating rod (3) is installed inside the installation groove (12), and a pin (4) is installed at the end of the rotating rod (3). The outer end of the contact piece (1) is provided with a spring groove (11), the inside of the spring groove (11) is provided with a spring ring (10), the inner side of the spring groove (11) is provided with a receiving groove (5), and the inside of the receiving groove (5) is provided with an elastic ring (6). A connecting strap (8) is fixed to the outer side of the temperature sensor (7), and a probe (9) is provided at the outer end of the temperature sensor (7).

2. The plum blossom contact according to claim 1, characterized in that: The contact piece (1) is set at an equal angle inside the spring coil (10).

3. A plum blossom contact according to claim 1, characterized in that: The arc spring (2) is symmetrically arranged about the center line of the contact piece (1).

4. A plum blossom contact according to claim 1, characterized in that: The rotating rod (3) is rotatably mounted on the contact piece (1) via a pin (4).

5. A plum blossom contact according to claim 1, characterized in that: The receiving groove (5) is formed inside the contact piece (1), and the depth dimension of the receiving groove (5) is greater than the radial thickness dimension of the elastic ring (6).

6. A plum blossom contact according to claim 1, characterized in that: The elastic ring (6) and the connecting strip (8) are connected by adhesive bonding.

7. A plum blossom contact according to claim 1, characterized in that: The spring coil (10) is installed at both the top and bottom of the contact piece (1).

8. A plum blossom contact according to claim 1, characterized in that: The probe (9) is attached to the outer side of the contact piece (1).

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