Connecting conductor on electric switch

Abstract

The utility model provides a connecting conductor on an electric switch, the electric switch at least comprises an insulating shell, a contact system, a wiring terminal, a control mechanism and a conductor, the conductor at least comprises a first conductive piece, a second conductive piece and a diverter, the first conductive piece and the second conductive piece are connected with two ends of the diverter, and the first conductive piece and the second conductive piece are connected with the insulating shell. The first conductive piece is connected with the contact system, and the second conductive piece is connected with the wiring terminal; the second conductive part is additionally provided with an extended conductor part or / and an additional material part or / and a radiator in the length direction, and the extended conductor part or / and the additional material part or / and the radiator radiates heat of the diverter. By bending and extending the length of the second conductive part or arranging the material adding part or the radiator, the heat dissipation efficiency of the conductive body is improved, the heating of the shunt is reduced, and the safety and the service life of the switch are improved.

Description

Technical Field

[0001] The utility model relates to the field of low-voltage electrical appliances, and particularly to a connecting conductor on an electric switch. Background Art

[0002] In some low-voltage electrical switches, a shunt is required to be connected in series for detecting the current in the circuit. However, when the shunt is working, since it often samples under a large current, the surface temperature of the product is likely to increase due to self-heating. Generally, one end of the shunt of a low-voltage electrical switch is connected in series with the switch, and the other end is connected to the terminal through a conductor. However, the existing switch conductor is connected linearly, and the connecting conductor is relatively short, resulting in poor heat dissipation. Eventually, the temperature of the terminal rises, affecting the safety and service life of the switch. Content of the Utility Model

[0003] Based on the above background, the utility model provides a connecting conductor arranged on an electric switch and connected to a shunt. By bending the conductor to extend its length, or by providing an additive part or a radiator thereon to dissipate the heat generated by the shunt, the heat dissipation area is increased, and finally the temperature of the terminal is reduced.

[0004] To achieve the above utility model purpose, the utility model provides a connecting conductor on an electric switch. The electric switch at least includes: an insulating housing, a contact system, a terminal, a control mechanism, and a conductor. The conductor at least includes a first conductive part, a second conductive part, and a shunt. The first conductive part and the second conductive part are connected to both ends of the shunt. The first conductive part is connected to the contact system, and the second conductive part is connected to the terminal. The second conductive part is provided with an extended conductor part or / and an additive part or / and a radiator in length. The extended conductor part or / and the additive part or / and the radiator dissipate the heat of the shunt. In this way, by adding an extended conductor part or / and an additive part or / and a radiator to the second conductive part, part of the heat generated when the shunt is energized is dissipated, the temperature rise of the switch is reduced, and the service life is extended.

[0005] Further, the extended conductor part is formed by bending the second conductive part, so that the connection distance between the second conductor and the terminal is extended by more than 1 time.

[0006] In the above embodiment, the extended conductor part is an extended bending part on the second conductive part. By bending, the connection distance between the second conductive part and the terminal is extended. The volume and surface area of the extended conductor part are greatly increased, and most of the heat of the shunt is absorbed and dissipated by the extended conductor part.

[0007] Further, the extended conductor part is formed by bending the second conductive part at least 2 times to form a "Z" or "zhi" or "7" or "ji" or "S" or "bow" shape or any combination of the above.

[0008] In the above embodiment, the bending form of the extended conductor portion can be diverse. Any of the above shapes or any combination of the above shapes can increase the volume and surface area of ​​the extended conductor portion within a limited space, allowing the extended conductor portion to absorb and dissipate more heat from the shunt, effectively reducing the temperature rise of the switch and improving its service life.

[0009] Furthermore, the heat sink is made of a metal material fixedly connected to the second conductive member and / or the connection terminal and / or the shunt, and the heat sink dissipates the heat of the shunt.

[0010] Furthermore, the heat sink is fixedly connected to the second conductive member and / or the connection terminal and / or the shunt by welding, riveting, crimping, bonding or the like.

[0011] Furthermore, the heat sink is made of copper or aluminum material and is in a rectangular or cube or comb shape.

[0012] In the above embodiment, the radiator serves as an independent heat dissipation component and is made of metal materials such as copper or aluminum with good thermal conductivity. It is fixedly connected to the second conductive member, the terminal block or the shunt by welding, riveting, crimping or bonding. The radiator can be set on one of the above components, part of the components or all of the components as needed to achieve an ideal heat dissipation effect. The shape of the radiator is set to maximize the volume and surface area based on the convenience of the manufacturing process, so as to absorb and dissipate the heat generated by the shunt to a greater extent, effectively reduce the temperature rise of the product, and increase the service life of the product.

[0013] Furthermore, the added material portion is formed by extending and bending the second conductive member and / or the connection terminal and / or the diverter, and the added material portion dissipates heat from the diverter.

[0014] In the above embodiment, the additive part is formed by extending and bending the second conductive part, the terminal or the diverter, which can further increase the volume and surface area of ​​the second conductive part, the terminal or the diverter, and has higher heat dissipation efficiency. The additive part can be implemented on one or part of the above components or all of the components according to the heat dissipation needs. The implementation of the additive part effectively reduces the temperature rise of the product and improves the service life of the product.

[0015] Furthermore, the first conductive member and the second conductive member are electrically connected to both ends of the shunt by welding, riveting or crimping.

[0016] In the above embodiment, the first conductive member and the second conductive member are electrically connected to the two ends of the shunt by welding, riveting, crimping, etc., so that the shunt is connected in series in the connecting conductor. The resistance characteristics of the shunt are utilized. When the resistance remains unchanged and the current increases, the voltage drop across the shunt becomes larger. The current passing through the switch is monitored by collecting the voltage across the shunt.

[0017] Furthermore, the first conductive member and the second conductive member are electrically connected to the contact system and the terminal block respectively by welding, riveting, crimping or the like.

[0018] In the above embodiment, the first conductive member and the second conductive member are electrically connected to the contact system and the terminal block, respectively, by welding, riveting, crimping, or the like, so that the switch interacts with the outside world through the terminal block to achieve conductive connection between the various components of the switch.

[0019] Furthermore, the contact system includes at least a moving contact and a static contact.

[0020] In the above embodiment, the contact system includes at least a moving contact and a stationary contact. The moving contact, as a movable component, is driven by the control mechanism to make contact and separate with the stationary contact to realize the connection and disconnection of the switch.

[0021] Furthermore, the electrical switch also includes a second terminal, a third terminal, a fourth terminal, a zero-sequence transformer, a second conductor, and a third conductor, wherein the second conductor is connected between the contact system and the second terminal, the third conductor is connected between the third terminal and the fourth terminal, the second conductor and the third conductor pass through the zero-sequence transformer, and the current directions of the second conductor and the third conductor passing through the zero-sequence transformer are opposite.

[0022] In the above embodiment, the electrical switch realizes the through-hole arrangement of the zero-sequence transformer through multiple terminals and conductors. After the conductors pass through the core, the current directions of the two conductors are opposite. When leakage current occurs, the sum of the current vectors of the two conductors is not zero. The zero-sequence transformer will be affected by the induced magnetic field and output a signal to the control mechanism to execute the electrical switch to open the circuit, thereby realizing leakage fault protection in the circuit system.

[0023] The beneficial effects of the utility model are as follows:

[0024] The utility model provides a variety of heat dissipation structures. By increasing the surface area and volume of the heat dissipation structure, the existing space is fully utilized, and the ability of the heat dissipation structure to absorb and dissipate the heat generated by the shunt being energized is improved, thereby effectively reducing the heat generation of the product and improving the safety performance and service life of the switch. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the implementation methods of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the implementation methods or the description of the prior art. Obviously, the drawings described below are only some implementation methods recorded in this application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0026] Figure 1 A schematic structural diagram of a connecting conductor on an electrical switch provided in the first embodiment;

[0027] Figure 2 A schematic structural diagram of a connecting conductor on an electrical switch provided in a second embodiment;

[0028] Figure 3 A schematic structural diagram of a connecting conductor on an electrical switch provided in a third embodiment;

[0029] Figure 4 A schematic structural diagram of a connecting conductor on an electrical switch provided in a fourth embodiment;

[0030] Figure 5 A schematic structural diagram of a connecting conductor on an electrical switch provided in a fifth embodiment;

[0031] Figure 6 A schematic structural diagram of a connecting conductor on an electrical switch provided in a sixth embodiment;

[0032] Figure 7 This is a schematic structural diagram of a connecting conductor on an electrical switch provided by the seventh embodiment. DETAILED DESCRIPTION

[0033] In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention is described in detail below with reference to the accompanying drawings and specific embodiments.

[0034] It should be noted here that in order to avoid obscuring the present invention due to unnecessary details, only the structures and / or processing steps closely related to the scheme of the present invention are shown in the accompanying drawings, while other details that are not closely related to the present invention are omitted.

[0035] In addition, it should be noted that the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0036] The specific implementation process of the embodiment is described below.

[0037] First embodiment:

[0038] like Figure 1As shown, this embodiment discloses a connecting conductor 600 on a switch, the electrical switch at least comprising: an insulating housing 200, a contact system 300, a terminal 400, a control mechanism 500, and a conductor 600, wherein the conductor 600 at least comprises a first conductive member 610, a second conductive member 620, and a shunt 630, wherein the first conductive member 610 and the second conductive member 620 are connected to both ends of the shunt 630, the first conductive member 610 is connected to the contact system 300, and the second conductive member 620 is connected to the terminal 400, and the second conductive member 620 is provided with an extended conductor portion 621 and an additional material portion 622 at a required length, wherein the extended conductor portion 621 and the additional material portion 622 dissipate part of the heat generated by the shunt 630, through An extended conductor portion 621 and an additional material portion 622 are added to the second conductive member 620 to dissipate part of the heat generated when the shunt 630 is energized, thereby reducing the temperature rise of the switch. The extended conductor portion 621 is formed by bending the second conductive member 620, so that the connection distance between the second conductor 700 and the terminal 400 is extended by more than 1 times. The extended conductor portion 621 is an "S" shape formed by four bends in the second conductive member 620. The extended conductor portion 621 is an extended bent portion on the second conductive member 620. The connection distance between the second conductive member 620 and the terminal 400 is extended by bending. The volume and surface area of ​​the extended conductor portion 621 are greatly increased, so that most of the heat of the shunt 630 is absorbed and dissipated by the extended conductor portion 621.The bending form of the extended conductor portion 621 can be diverse, and its main function is to increase the volume and surface area of ​​the extended conductor portion 621 within a limited space, so that the extended conductor portion 621 absorbs and dissipates more heat from the shunt 630. The additive portion 622 is formed by extending and bending the second conductive member 620 itself. The additive portion 622 dissipates part of the heat generated by the shunt 630. The additive portion 622 is formed by extending and bending the second conductive member 620 itself, which can further increase the volume and surface area of ​​the second conductive member 620 or the terminal block 400 or the shunt 630, and has higher heat dissipation efficiency. The additive portion 622 can be placed on a certain component or the shunt according to the heat dissipation needs. The implementation of the additive part 622 on some or all components effectively reduces the temperature rise of the product and improves the service life of the product. The first conductive member 610 and the second conductive member 620 are electrically connected to the two ends of the shunt 630 by welding. The first conductive member 610 and the second conductive member 620 are welded to the two ends of the shunt 630, so that the shunt 630 is connected in series with the connecting conductor 600. By utilizing the resistance characteristics of the shunt 630, when the resistance remains unchanged and the current increases, the voltage drop across the shunt 630 is greater. The current passing through the switch is monitored by collecting the voltage across the shunt 630. The first conductive member 610 and the second conductive member 620 are respectively connected to the contact system 300 and the terminal The terminal 400 is electrically connected by welding, so that the switch interacts with the outside world through the terminal 400 to achieve conductive connection between the various components of the switch. The contact system 300 includes at least a moving contact 310 and a static contact 320. The moving contact 310, as a movable component, is driven by the control mechanism 500 to make contact and separate movements with the static contact 320 to achieve the connection and disconnection of the switch. The electrical switch also includes a second terminal 410, a third terminal 420, a fourth terminal 430, a zero-sequence mutual inductor, a second conductor 700, and a third conductor 800. The second conductor 700 is connected between the contact system 300 and the second terminal 410. The third conductor 800 is connected between the third terminal 420 and the fourth terminal 430, and the second conductor 700 and the third conductor 800 pass through the zero-sequence transformer. The current directions of the second conductor 700 and the third conductor 800 passing through the zero-sequence transformer are opposite. The electrical switch realizes the through-core arrangement of the zero-sequence transformer through multiple terminals 400 and conductors 600. After the conductor 600 passes through the core, the current directions of the two conductors 600 are opposite. When leakage current occurs, the vector sum of the currents of the two conductors is not zero, and the zero-sequence transformer will be affected by the induced magnetic field and output a signal to the control mechanism 500 to execute the electrical switch disconnection, thereby realizing leakage fault protection in the circuit system.

[0039] Second embodiment:

[0040] See Figure 2Compared with the first embodiment, the second conductive member 620 of this embodiment is provided with an extended conductor portion 621 and a heat sink 623 at a necessary length. The extended conductor portion 621 and the heat sink 623 dissipate part of the heat generated by the diverter 630. The heat sink 623 is a metal material fixedly connected to the second conductive member 620. The heat sink 623 dissipates part of the heat generated by the diverter 630. The heat sink 623 and the second conductive member 620 are fixedly connected by welding, riveting, pressing, or bonding. 3 is a rectangular parallelepiped with a comb-like structure made of copper or aluminum. The heat sink 623 is an independent heat dissipation component made of metal materials such as copper or aluminum with good thermal conductivity. It is fixedly connected to the second conductive member 620 or the terminal 400 by welding, riveting, crimping, or bonding. The shape or size of the heat sink 623 can be adjusted as needed. The shape of the heat sink 623 is set to maximize the volume and surface area based on the convenience of the manufacturing process, so as to absorb and dissipate the heat generated by the diverter 630 to a greater extent, effectively reducing the temperature rise of the product and increasing the product life.

[0041] Third embodiment:

[0042] See Figure 3 Compared with the first embodiment, the first conductive member 610 of this embodiment is additionally provided with an extended conductor portion 621 and an additional material portion 622 at a necessary length. The extended conductor portion 621 and the additional material portion 622 dissipate part of the heat generated by the diverter 630. In the above embodiment, the extended conductor portion 621, the additional material portion 622, and the heat sink 623 can be provided not only on the second conductive member 620 but also on the first conductive member 610, and both can achieve the same heat dissipation effect.

[0043] Fourth embodiment:

[0044] See Figure 4 Compared with the first embodiment, the electrical switch of this embodiment is a double-breakpoint bridge contact. The shunt 630 is provided with an additive portion 622 and a heat sink 623. The heat sink 623 is arranged on the other side of the additive portion 622. The additive portion 622 and the heat sink 623 dissipate part of the heat generated by the shunt 630. The heat sink 623 is square and bonded to one side of the shunt, directly absorbing and dissipating the heat generated by the shunt 630. The additive portion 622 is formed by an integrally formed extension bend of the shunt 630. The extension portion does not pass current, and the heat generated by the energized part of the shunt 630 is conducted to the extension portion for dissipation, effectively reducing the temperature rise of the switch by at least 5K.

[0045] Fifth embodiment:

[0046] See Figure 5Compared with the fourth embodiment, the second conductive member 620 of this embodiment is provided with an extended conductor portion 621, which is a 7-shaped extended conductor portion 621 formed by at least two bends. The second conductive member 620 is also provided with an additive portion 622, which is formed by extending and bending the material of the second conductive member 620 itself. The extended conductor portion 621 and the additive portion 622 dissipate part of the heat generated when the shunt 630 is energized, thereby effectively reducing the temperature rise of the switch.

[0047] Sixth embodiment:

[0048] See Figure 6 , the difference compared to the first and fourth embodiments is that, in this embodiment, a heat sink 623 is provided on the second conductive member 620, and an additive portion 622 is provided on the terminal 400. The heat sink 623 is fixed to the second conductive member 620 by welding, bonding, crimping, riveting, etc., and absorbs and dissipates heat generated when the diverter 630 is energized. The heat sink 623 is a combination of square and comb-shaped. The comb-shaped structure has a larger surface area and can fully contact the external air to dissipate heat into the air, thereby reducing the heat of the diverter 630 and lowering the switch temperature. The terminal 400 is also extended with an additive portion 622 made of its own material. The additive portion 622 indirectly dissipates the heat generated by the diverter 630, thereby reducing the temperature rise of the switch by at least 5K.

[0049] Seventh embodiment:

[0050] See Figure 7 , the difference from other embodiments is that a heat sink 623 is provided on the terminal 400 of this embodiment, and the heat sink 623 is fixedly connected to the terminal 400 by welding, riveting, bonding, or crimping. The heat sink 623 has a combined shape of a square and a comb, and the comb-like structure has a better heat dissipation effect. The heat sink 623 absorbs and dissipates the heat of the terminal 400 so that the temperature of the terminal 400 is lower than that of the second conductive member 620 and the separator, so that the heat is transferred to the terminal 400. The heat sink 623 indirectly dissipates part of the heat generated when the diverter 630 is energized, thereby effectively reducing the temperature of the switch and improving the service life of the switch.

[0051] The present invention can be implemented in other specific forms without departing from its spirit and essential characteristics. The current embodiments are to be regarded as illustrative in all respects and not restrictive. The scope of the present invention is defined by the appended claims rather than the above description, and all changes that fall within the meaning and scope of the claims are included in the scope of the present invention. The above embodiments are only used to illustrate the technical solution of the present invention and are not limiting. Although the present invention is described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solution of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the present invention.

Claims

1. A connecting conductor on an electrical switch, the electrical switch comprising at least: Insulating housing, contact system, terminal, control mechanism, conductor. The conductor at least includes a first conductor, a second conductor, and a shunt. The first conductor and the second conductor are connected to both ends of the shunt. The first conductor is connected to the contact system, and the second conductor is connected to the terminal. Characterized in that: an extended conductor part or / and an additive part or / and a heat sink are added to the second conductor in terms of length. The extended conductor part or / and the additive part or / and the heat sink dissipate the heat of the shunt.

2. A connecting conductor on an electrical switch according to claim 1, characterized in that The extended conductor part is formed by bending the second conductor, so that the connection distance between the second conductor and the terminal is extended by more than 1 time.

3. The connecting conductor on the electrical switch according to claim 1, characterized in that The extended conductor part is formed by at least 2 bends of the second conductor in a "Z" or "zhi" or "7" or "ji" or "S" or "bow" shape or any combination thereof.

4. The connecting conductor on the electrical switch according to claim 1, characterized in that The heat sink is a metal material fixedly connected to the second conductor or / and the terminal or / and the shunt, and the heat sink dissipates the heat of the shunt.

5. The connecting conductor on the electrical switch according to claim 1, characterized in that: The heat sink is fixedly connected to the second conductor or / and the terminal or / and the shunt by welding or riveting or crimping or bonding.

6. The connecting conductor on the electrical switch according to claim 1, characterized in that: The heat sink is in the shape of a cuboid or a cube or a comb made of copper or aluminum.

7. The connecting conductor on the electrical switch according to claim 1, characterized in that: The additive part is formed by self-extension and bending on the second conductor or / and the terminal or / and the shunt, and the additive part dissipates the heat of the shunt.

8. The connecting conductor on the electrical switch according to claim 1, characterized in that: The first conductor and the second conductor are electrically connected to both ends of the shunt by welding or riveting or crimping.

9. The connecting conductor on the electrical switch according to claim 1, characterized in that: The first conductor and the second conductor are electrically connected to the contact system and the terminal respectively by welding or riveting or crimping.

10. The connecting conductor on the electric switch according to claim 1, characterized in that: The contact system at least includes a moving contact and a static contact.

11. The connecting conductor on the electrical switch according to claim 1, characterized in that: The electrical switch further includes a second terminal, a third terminal, a fourth terminal, a zero-sequence current transformer, a second conductor, and a third conductor. The second conductor is connected between the contact system and the second terminal. The third conductor is connected between the third terminal and the fourth terminal. The second conductor and the third conductor pass through the zero-sequence current transformer, and the current directions of the parts of the second conductor and the third conductor passing through the zero-sequence current transformer are opposite.

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