Energy storage structure of contact and switch

Abstract

The utility model discloses an energy storage structure of a contact and a switch, comprising: a rotating member is provided with a fixed cavity, the fixed cavity comprises a first channel and a second channel, the first channel is connected to the second channel and the two are connected in a stepped manner; a moving contact is accommodated in the fixed cavity; a first torsion spring is accommodated in the first channel, one end of the first torsion spring cooperates with a side wall of the first channel, and the other end of the first torsion spring cooperates with one end of the moving contact; a second torsion spring is accommodated in the second channel, one end of the second torsion spring cooperates with a side wall of the second channel, and the other end of the second torsion spring cooperates with the other end of the moving contact; in this structural arrangement, two torsion springs are correspondingly arranged for one moving contact, and the two torsion springs respectively correspond to the two ends of the moving contact, thereby giving the moving contact a certain contact pressure, so that the electrical connection between the moving contact and the static contact is more stable, and the two torsion springs form a combined effect to increase the contact pressure; compared with the installation method of the straight spring in the prior art, the installation of the torsion spring is more convenient.

Description

Technical Field

[0001] The utility model relates to the field of electrical technology, in particular to an energy storage structure of a contact and a switch. Background Art

[0002] In an electrical switch, a rotating member cooperates with a moving contact, and the rotating member drives the moving contact to rotate, thereby achieving an electrical connection effect between the moving contact and the stationary contact. Usually, a certain contact pressure is applied between the moving contact and the rotating member, so that the moving contact and the stationary contact can fit firmly, thereby improving the stability of the electrical connection.

[0003] In the prior art, there is a method of using a straight spring as an energy storage component to apply contact pressure, but the problems with this structure are that, first, the straight spring is inconvenient to install and fix; second, the force of the straight spring needs to be overcome during the installation of the moving contact. Those skilled in the art also use reeds and other methods to form contact pressure, but the contact pressure effect generated by them is not ideal and cannot meet the use in a high current environment. Utility Model Content

[0004] Therefore, the technical problem to be solved by the present invention is how to improve the installation efficiency.

[0005] To this end, a contact energy storage structure includes:

[0006] A rotating member, wherein the rotating member is provided with a fixed cavity, wherein the fixed cavity includes a first channel and a second channel, wherein the first channel is connected to the second channel and the two are connected in a stepped manner;

[0007] A moving contact, the moving contact being accommodated in the fixed cavity;

[0008] a first torsion spring, wherein the first torsion spring is accommodated in the first channel, one end of the first torsion spring is matched with a side wall of the first channel, and the other end of the first torsion spring is matched with one end of the moving contact;

[0009] A second torsion spring, wherein the second torsion spring is accommodated in the second channel, one end of the second torsion spring is matched with a side wall of the second channel, and the other end of the second torsion spring is matched with the other end of the moving contact.

[0010] The connection between the first channel and the second channel forms a first corner and a second corner, the first torsion spring is provided with a first body portion, the second torsion spring is provided with a second body portion, the first body portion is located at the first corner, and the second body portion is located at the second corner.

[0011] The first torsion spring includes a first bending portion and a second bending portion, the first bending portion abuts against the side wall of the first channel, and the second bending portion abuts against the side wall of one end of the moving contact; the second torsion spring includes a third bending portion and a fourth bending portion, the third bending portion abuts against the side wall of the second channel, and the fourth bending portion abuts against the side wall of the other end of the moving contact.

[0012] There are two fixed cavities, which are independently arranged up and down. There are two moving contacts, which are respectively accommodated in corresponding fixed cavities, and the two moving contacts face in opposite directions.

[0013] The rotating member is provided with a positioning ring.

[0014] A positioning groove is provided at one end of the rotating member, and a positioning protrusion matched with the positioning groove is provided at the other end of the rotating member.

[0015] Therefore, the technical problem to be solved by the utility model is how to improve the installation efficiency. To this end, a switch includes the above-mentioned contact energy storage structure.

[0016] The switch is a dual power transfer switch or a double throw isolating switch.

[0017] It comprises a plurality of modules, each module accommodating the energy storage structure of the contact, wherein a positioning protrusion of one module cooperates with a positioning groove of an adjacent module.

[0018] Also included is a separator, which separates the two moving contacts.

[0019] The technical solution of the utility model has the following advantages:

[0020] 1. The utility model provides a contact energy storage structure. With this structural setting, one moving contact is provided with two torsion springs, and the two torsion springs correspond to the two ends of the moving contact respectively, thereby giving the moving contact a certain contact pressure, making the electrical connection between the moving contact and the static contact more stable, and the two torsion springs form a combined effect to increase the contact pressure; compared with the installation method of the straight spring in the prior art, the installation of the torsion spring is more convenient.

[0021] 2. The energy storage structure of the contact provided by the utility model is arranged at the corner so that the two torsion springs can have a better fixing effect. In addition, the torsion springs can also be fixed by pasting or other positioning methods.

[0022] 3. The utility model provides a contact energy storage structure, the setting of the bent portion increases the fitting area between the torsion spring and the matching component, and improves the stability of the torsion spring energy storage. In addition, corresponding grooves can be set on the first channel, the second channel, and the side wall of the moving contact to form an embedded fixation of the bent portion; or, the torsion spring is fixed in a plug-in manner.

[0023] 4. The utility model provides a contact energy storage structure, which adopts upper and lower independent settings to form a separation between the upper and lower circuits to prevent arcing.

[0024] 5. The utility model provides a contact energy storage structure, in which the positioning groove cooperates with the positioning protrusion to form a linkage effect between two adjacent rotating parts.

[0025] 6. The utility model provides a switch, a dual power conversion switch and a double-throw isolating switch, both of which are two-way circuits, so the above structure can be applied to these two switches.

[0026] 7. The utility model provides a switch in which two adjacent modules achieve a linkage effect through a rotating member.

[0027] 8. In a switch provided by the utility model, the isolating member increases the isolation effect between the upper and lower moving contacts, thereby improving the isolation level. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] 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.

[0029] Figure 1 A schematic diagram of the structure of an energy storage structure of a contact provided by the utility model;

[0030] Figure 2 A cross-sectional view of an energy storage structure of a contact provided by the utility model;

[0031] Figure 3 A cross-sectional view of a rotating member provided by the utility model;

[0032] Figure 4 A schematic diagram of the structure of the moving contact, the first torsion spring and the second torsion spring provided by the utility model;

[0033] Figure 5 The present invention is a schematic structural diagram of a switch provided by the utility model.

[0034] Description of reference numerals:

[0035] 11. Rotating member; 12. Moving contact; 13. First torsion spring; 14. Second torsion spring; 15. Module; 16. Isolation member; 111. Fixed cavity; 112. First channel; 113. Second channel; 114. First corner; 115. Second corner; 116. Positioning ring; 117. Positioning groove; 118. Positioning protrusion; 131. First main body; 132. First bending portion; 133. Second bending portion; 141. Second main body; 142. Third bending portion; 143. Fourth bending portion. DETAILED DESCRIPTION

[0036] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0037] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0040] Example 1

[0041] This embodiment provides a contact energy storage structure, as shown in the attached Figure 1-4 As shown, including:

[0042] Rotating member 11, rotating member 11 is provided with a fixed cavity 111, and the fixed cavity 111 includes a first channel 112 and a second channel 113, the first channel 112 and the second channel 113 are openings in different directions, in this embodiment, the first channel 112 is open toward the front end, and the second channel 113 is open toward the rear end. The bottom surface of the first channel 112 and the bottom surface of the second channel 113 are coplanar, and the top surface of the first channel 112 and the top surface of the second channel 113 are coplanar, that is, the height of the first channel 112 is consistent with the height of the second channel 113. It should be noted that the imaginary central axis of the first channel 112 and the imaginary central axis of the second channel 113 are not colinear, and the two imaginary central axes are arranged in parallel. The first channel 112 is connected with the second channel 113 and the two are connected in a stepped manner. It can also be considered that the first channel 112 and the second channel 113 are connected to form a Z-shaped structure. It should also be noted here that the fixed cavity 111 has only two openings.

[0043] The moving contact 12 is accommodated in the fixed cavity 111. In this embodiment, the moving contact 12 extends to the outside through the first channel 112 and the second channel 113, that is, one end of the moving contact 12 is located outside the front end of the rotating member 11, and the other end of the moving contact 12 is located outside the rear end of the rotating member 11. In this embodiment, the moving contact 12 is centrally symmetrically arranged, and its two ends are oriented in different directions.

[0044] The first torsion spring 13 is accommodated in the first channel 112, one end of the first torsion spring 13 cooperates with the side wall of the first channel 112, and the other end of the first torsion spring 13 cooperates with one end of the moving contact 12. Here, the first torsion spring 13 gives a contact pressure to this end of the moving contact 12, so that this end of the moving contact 12 can firmly abut against the corresponding static contact.

[0045] The second torsion spring 14 is accommodated in the second channel 113, one end of the second torsion spring 14 cooperates with the side wall of the second channel 113, and the other end of the second torsion spring 14 cooperates with the other end of the moving contact 12. Here, the second torsion spring 14 gives a contact pressure to this end of the moving contact 12, so that this end of the moving contact 12 can be firmly against the corresponding static contact. With this structural setting, two torsion springs are corresponding to one moving contact 12, and the two torsion springs correspond to the two ends of the moving contact 12, thereby giving the moving contact 12 a certain contact pressure, so that the electrical connection between the moving contact 12 and the static contact is more stable, and the two torsion springs form a combined effect to increase the contact pressure; compared with the installation method of the straight spring in the prior art, the installation of the torsion spring is more convenient.

[0046] Specifically, as attached Figure 3As shown, the connection between the first channel 112 and the second channel 113 forms a first corner 114 and a second corner 115. Since the first channel 112 and the second channel 113 form a stepped structure, two corners are formed, namely the first corner 114 and the second corner 115. The first torsion spring 13 is provided with a first body portion 131, and the second torsion spring 14 is provided with a second body portion 141. The first body portion 131 is located at the first corner 114, and the second body portion 141 is located at the second corner 115. The setting of the corners enables the two torsion springs to have a better fixing effect. In addition, the fixing of the torsion spring can also be formed by pasting or other positioning methods; or the first torsion spring 13 can also be located near the opening of the first channel 112, and the second torsion spring 14 can be located near the opening of the second channel 113. However, in this embodiment, it should be noted that the first torsion spring 13 and the second torsion spring 14 are centrally symmetrically arranged to ensure that the contact pressure at both ends of the contact is equal.

[0047] Specifically, as attached Figure 2-4 As shown, the first torsion spring 13 includes a first bending portion 132 and a second bending portion 133. The first bending portion 132 and the second bending portion 133 are respectively arranged at the ends of the pins of the first torsion spring 13, that is, at the position farthest from the first body portion 131. The first body portion 131 has two pins, and the two pins extend outward. The first bending portion 132 abuts against the side wall of the first channel 112, and the second bending portion 133 abuts against the side wall of one end of the moving contact 12. In this embodiment, the first bending portion 132 abuts against the left wall of the first channel 112, then at this time, the second bending portion 133 abuts against the left wall of one end of the moving contact 12. It can also be considered that the first bending portion 132 and the second bending portion 133 are located between the left wall of the first channel 112 and the left wall of one end of the moving contact 12. The second torsion spring 14 includes a third bend 142 and a fourth bend 143. The third bend 142 and the fourth bend 143 are respectively arranged at the ends of the pins of the second torsion spring 14, that is, at the position farthest from the second body 141. The second body 141 has two pins, and the two pins extend outward. The third bend 142 abuts against the side wall of the second channel 113, and the fourth bend 143 abuts against the side wall of the other end of the moving contact 12. In this embodiment, the third bend 142 abuts against the right side wall of the second channel 113, then at this time, the fourth bend 143 abuts against the right side wall of the other end of the moving contact 12. It can also be considered that the third bend 142 and the fourth bend 143 are located between the right side wall of the second channel 113 and the right side wall of the other end of the moving contact 12. The setting of the bend increases the fitting area between the torsion spring and the matching component, and improves the stability of the torsion spring energy storage. In addition, corresponding grooves may be provided on the first channel 112 , the second channel 113 , and the side walls of the moving contact 12 to form an embedded fixation of the bent portion; or the torsion spring may be fixed in a plug-in manner.

[0048] Specifically, there are two fixed cavities 111, which are independently arranged up and down, and two moving contacts 12, which are respectively accommodated in corresponding fixed cavities 111, with the two moving contacts 12 facing in opposite directions. The upper and lower circuits are separated by being independently arranged up and down to prevent arcing.

[0049] Specifically, the rotating member 11 is provided with a positioning ring 116. The positioning ring 116 is located on the outer wall of the rotating member 11, and the positioning ring 116 is located between the two moving contacts 12. The positioning ring 116 is used for positioning and fixing during assembly.

[0050] Specifically, a positioning groove 117 is provided at one end of the rotating member 11, and a positioning protrusion 118 is provided at the other end of the rotating member 11 to cooperate with the positioning groove 117. The positioning groove 117 cooperates with the positioning protrusion 118 to form a linkage effect between two adjacent rotating members 11. In this embodiment, the positioning groove 117 is provided at the upper end of the rotating member 11, and the positioning protrusion 118 is provided at the lower end of the rotating member 11.

[0051] Specifically, the rotating member 11 is an integrally formed device. In this embodiment, the rotating member 11 is specifically an integrally formed device by injection molding, which is easy to process and has high overall strength. In addition, the rotating member 11 can also be a split structure, which is composed of two or more parts.

[0052] Example 2

[0053] This embodiment provides a switch, as shown in the attached Figure 1-5 As shown, including:

[0054] The energy storage structure of the contact has been described in detail in Embodiment 1, so it will not be described in detail in this embodiment.

[0055] Specifically, the switch is a dual power conversion switch or a dual-throw isolating switch. Both the dual power conversion switch and the dual-throw isolating switch are two-way circuits, so the above structure can be applied to these two switches.

[0056] Specifically, it includes several modules 15, each module 15 contains a contact energy storage structure, and the positioning protrusion 118 of one module 15 cooperates with the positioning groove 117 of the adjacent module 15. The rotating member 11 realizes the linkage effect between two adjacent modules 15.

[0057] Specifically, it also includes an isolating member 16, which is connected and fixed to the module 15, and the isolating member 16 separates the two moving contacts 12. The isolating member 16 increases the isolation effect between the upper and lower moving contacts 12, and improves the isolation level. In this embodiment, when the energy storage structure of the contact is fixed with the module 15, the isolating member 16 is located above the positioning ring 116 to form an isolation effect.

[0058] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A contact energy storage structure, characterized in that: include: A rotating member (11), the rotating member (11) being provided with a fixed cavity (111), the fixed cavity (111) comprising a first channel (112) and a second channel (113), the first channel (112) being connected to the second channel (113) and the two being connected in a stepped manner; A moving contact (12), the moving contact (12) being accommodated in the fixed cavity (111); a first torsion spring (13), the first torsion spring (13) being accommodated in the first channel (112), one end of the first torsion spring (13) being matched with a side wall of the first channel (112), and the other end of the first torsion spring (13) being matched with one end of the moving contact (12); A second torsion spring (14), wherein the second torsion spring (14) is accommodated in the second channel (113), one end of the second torsion spring (14) cooperates with a side wall of the second channel (113), and the other end of the second torsion spring (14) cooperates with the other end of the moving contact (12).

2. The energy storage structure of the contact according to claim 1, characterized in that: A first corner (114) and a second corner (115) are formed at a connection between the first channel (112) and the second channel (113); the first torsion spring (13) is provided with a first body portion (131); the second torsion spring (14) is provided with a second body portion (141); the first body portion (131) is located at the first corner (114); and the second body portion (141) is located at the second corner (115).

3. The contact energy storage structure according to claim 1, characterized in that: The first torsion spring (13) comprises a first bent portion (132) and a second bent portion (133), the first bent portion (132) abuts against a side wall of the first channel (112), and the second bent portion (133) abuts against a side wall of one end of the moving contact (12); the second torsion spring (14) comprises a third bent portion (142) and a fourth bent portion (143), the third bent portion (142) abuts against a side wall of the second channel (113), and the fourth bent portion (143) abuts against a side wall of the other end of the moving contact (12).

4. The energy storage structure of the contact according to claim 1, characterized in that: The number of the fixed cavities (111) is two, and the two fixed cavities (111) are independently arranged up and down. The number of the moving contacts (12) is two, and the two moving contacts (12) are respectively accommodated in the corresponding fixed cavities (111), and the two moving contacts (12) are oriented in opposite directions.

5. The contact energy storage structure according to claim 1, characterized in that: The rotating member (11) is provided with a positioning ring (116).

6. The contact energy storage structure according to claim 1, characterized in that: A positioning groove (117) is provided at one end of the rotating member (11), and a positioning protrusion (118) matching with the positioning groove (117) is provided at the other end of the rotating member (11).

7. A switch, characterized in that: An energy storage structure comprising a contact as described in any one of claims 1 to 6.

8. The switch according to claim 7, characterized in that: The switch is a dual power transfer switch or a double throw isolating switch.

9. The switch according to claim 7, characterized in that: It comprises a plurality of modules (15), wherein the modules (15) accommodate the energy storage structure of the contacts, wherein a positioning protrusion (118) of one of the modules (15) cooperates with a positioning groove (117) of an adjacent module (15).

10. The switch according to claim 7, characterized in that: It also includes an isolating member (16), wherein the isolating member (16) separates the two moving contacts (12).

Images