Load switch and ammeter

Abstract

The invention provides a load switch and an ammeter, and relates to the technical field of electrical equipment. The load switch comprises a shell, a first static contact, a moving contact, a first leading-out piece and a second leading-out piece. The first static contact is arranged on the shell, and the first static contact is provided with a first static contact part; the moving contact is movably arranged on the shell, the moving contact is provided with a moving contact part, and the moving contact part is used for being in contact with or separated from the first static contact; the first leading-out piece is connected with the first static contact, at least parts of the first leading-out piece and the second leading-out piece are located on the two sides of the width direction of the movable contact part, and meanwhile the flow direction of current passing through the parts is opposite to the flow direction of current passing through the movable contact, so that the contact force between the movable contact and the static contact is increased. The operation stability of the contact assembly and the endurance capacity of short-circuit current are effectively improved, the first leading-out piece and the second leading-out piece are reasonable in design and simple in structure, and the production cost of the load switch is low.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical equipment, and more particularly, to a load switch and an electric meter. Background Art

[0002] In order to ensure the safe operation of the power consumption system, electrical devices capable of reliably connecting, disconnecting, and carrying normal current are usually configured in the system. In addition, these electrical devices can also perform the functions of connecting, carrying, and disconnecting current in the case of abnormal circuit faults (such as short circuits).

[0003] Since the moving and static contacts are prone to contact repulsion in abnormal circuit fault states such as abnormal current, the above problems can be alleviated by adopting current magnetic enhancement design or increasing the magnet. However, the current electrical device design is usually unreasonable. Either the magnetic enhancement effect is limited and it cannot operate stably, or although the magnetic enhancement effect can be achieved, its production cost is relatively high. Summary of the Invention

[0004] The present invention provides a load switch and an electric meter, which have a simple structure, reasonable design, low production cost, and can generate electromagnetic field force during closing to increase the contact force between the moving and static contacts, thereby avoiding the repulsion and separation between the moving and static contacts in abnormal circuit fault states such as abnormal current, ensuring the stable contact between the moving contact and the static contact, and effectively improving the operation stability of the contact assembly and the short-circuit current withstand capacity.

[0005] The embodiments of the present invention can be implemented as follows:

[0006] In a first aspect, the present invention provides a load switch, including:

[0007] A housing;

[0008] A first static contact, the first static contact is disposed on the housing, and the first static contact is provided with a first static contact portion;

[0009] A moving contact, the moving contact is movably disposed on the housing, the moving contact is provided with a moving contact portion, and the moving contact portion is used to contact or separate from the first static contact portion;

[0010] A first lead-out member, the first lead-out member includes a first section extending along the thickness direction of the moving contact and a second section extending along the length direction of the moving contact;

[0011] A second lead-out member, the second lead-out member includes a fifth section extending along the length direction of the moving contact and a sixth section extending along the thickness direction of the moving contact;

[0012] Wherein, the second section and the fifth section are respectively located on both sides of the width direction of the moving contact. In the closed state, the second section, the first section, the first static contact, the moving contact, the fifth section, and the sixth section form a conductive circuit, and the current flow directions through the second section and the fifth section are both opposite to the current flow direction through the moving contact.

[0013] In an alternative embodiment, one end of the moving contact is provided with the moving contact portion, and the other end is rotatably arranged on the housing and connected to the fifth section through the flexible member and / or the clamping member.

[0014] In an alternative embodiment, the first section and the sixth section are oppositely arranged on both sides of the first static contact portion.

[0015] In an alternative embodiment, the first lead member further includes a third section and a first lead end. The first section, the second section, the third section, and the first lead end are connected in sequence. The third section extends along the thickness direction of the moving contact; the sixth section is connected to the second lead end, and the first lead end and the second lead end are located on the same side of the moving contact.

[0016] In an alternative embodiment, the moving contact portion includes a first contact portion and a second contact portion. The first contact portion is used for contacting or separating from the first static contact portion;

[0017] The second lead member further includes a fourth section connected to the fifth section. The load switch further includes a second static contact, which is connected to the fourth section. The second static contact is provided with a second static contact portion, and the second static contact portion is used for contacting or separating from the second contact portion.

[0018] In an alternative embodiment, the first lead member further includes a third section. The first section, the second section, and the third section are connected in sequence. The third section extends along the thickness direction of the moving contact. The third section is used for connecting to an external power source or a wire. The first section and the sixth section are located on both sides of the first static contact portion, and the third section and the fourth section are located on both sides of the second static contact portion.

[0019] In an alternative embodiment, in the closed state, the second section and the fifth section are located on the side of the moving contact away from the first static contact portion.

[0020] In an alternative embodiment, in the closed state, at least part of the bottom wall of the second section and / or the fifth section is not lower than the bottom wall of the moving contact.

[0021] In an alternative embodiment, the load switch further includes a magnetic enhancing member. When the moving contact portion is in contact with the first stationary contact portion, the magnetic enhancing member is disposed on one side or both sides in the width direction of the moving contact.

[0022] In an alternative embodiment, at least one magnetic enhancing member is oppositely disposed on each of the two sides in the width direction of the moving contact.

[0023] In a second aspect, the present invention provides an electric meter including the load switch according to any one of the foregoing embodiments.

[0024] The beneficial effects of the load switch and the electric meter provided by the embodiments of the present invention include: By forming a conductive loop composed of the second section, the first section, the first stationary contact, the moving contact, the fifth section, and the sixth section, and the current flow directions through the second section and the fifth section are both opposite to the current flow direction through the moving contact, so that the magnetic fields generated by the second section and the fifth section effectively act on the moving contact, thereby increasing the contact force between the moving contact and the stationary contact, and thus avoiding the separation due to the repulsive force between the moving contact and the stationary contact under abnormal current and other abnormal circuit fault conditions, ensuring the stable contact between the moving contact and the stationary contact, and effectively improving the operation stability of the contact assembly and the short-circuit current withstand capacity. It can be seen that the load switch provided by the present invention can effectively achieve the magnetic enhancing effect by reasonably designing the first lead member and the second lead member, and due to its simple structure, the production cost is also low. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, other related drawings can be obtained based on these drawings without creative efforts.

[0026] Figure 1 FIG. 1 is one of the schematic structural diagrams of the first embodiment of the load switch provided by the embodiment of the present invention;

[0027] Figure 2 FIG. 2 is another schematic structural diagram of the first embodiment of the load switch provided by the embodiment of the present invention;

[0028] Figure 3 FIG. 3 is one of the schematic structural diagrams of the second embodiment of the load switch provided by the embodiment of the present invention;

[0029] Figure 4 FIG. 4 is another schematic structural diagram of the second embodiment of the load switch provided by the embodiment of the present invention;

[0030] Figure 5The third structural schematic diagram of the second embodiment of the load switch provided by the embodiment of the present invention;

[0031] Figure 6 The fourth structural schematic diagram of the second embodiment of the load switch provided by the embodiment of the present invention.

[0032] Icon: 10 - Load switch; 100 - Housing; 200 - First static contact; 210 - First static contact part; 300 - Moving contact; 310 - Moving contact part; 311 - First contact part; 312 - Second contact part; 400 - First lead-out piece; 410 - First section; 420 - Second section; 430 - Third section; 440 - First lead-out end; 500 - Second lead-out piece; 510 - Fourth section; 520 - Fifth section; 530 - Sixth section; 540 - Second lead-out end; 600 - Flexible part; 700 - Magnetism-increasing part; 800 - Second static contact; 810 - Second static contact part. Detailed implementation manners

[0033] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are some but not all of the embodiments of the present invention. Generally, the components of the embodiments of the present invention described and illustrated in the accompanying drawings here can be arranged and designed in various different configurations.

[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed present invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts fall within the scope of protection of the present invention.

[0035] It should be noted that: similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0036] In the description of the present invention, it should be noted that if terms such as "upper", "lower", "inner", "outer", etc. are used to indicate the orientation or positional relationship, it is based on the orientation or positional relationship shown in the accompanying drawings or the orientation or positional relationship in which the product of the present invention is usually placed during use. It is 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 should not be construed as a limitation to the present invention.

[0037] In addition, if terms such as "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0038] It should be noted that, without conflict, the features in the embodiments of the present invention can be combined with each other.

[0039] To ensure the safe operation of the power consumption system, electrical devices with the ability to reliably connect, disconnect, and carry normal current are usually configured in the system. In addition, these electrical devices can also perform the functions of connecting, carrying, and disconnecting current in the case of abnormal circuit faults (such as short circuits).

[0040] Since the moving and static contacts are prone to the phenomenon of contact repulsion in abnormal circuit fault states such as abnormal current, the above problems can be alleviated by adopting current magnetic enhancement design or adding magnets. However, the current electrical device design is usually unreasonable. Either the magnetic enhancement effect is limited and it cannot operate stably, or although the magnetic enhancement effect can be achieved, its production cost is relatively high.

[0041] Based on the problems existing in the prior art, please refer to Figure 1 and Figure 2 , an embodiment of the present invention provides a load switch 10, which is applied to related electrical equipment such as electric meters. The load switch 10 provided by the present invention not only has a simple structure, reasonable design, and low production cost, but also can generate an electromagnetic field force when closing to increase the contact force between the moving and static contacts, thus avoiding the separation of the moving and static contacts due to repulsion in abnormal circuit fault states such as abnormal current, ensuring the stable contact between the moving contact 300 and the static contact, and effectively improving the operating stability of the contact assembly and the short-circuit current withstand capacity.

[0042] Specifically, the load switch 10 includes a housing 100, a first static contact 200, a moving contact 300, a first lead-out member 400, and a second lead-out member 500.

[0043] First of all, it should be noted that the housing 100 has a rectangular cubic structure, Figure 1 where the housing 100 is only for illustration and does not represent the actual specific structure and dimensions of the housing 100.

[0044] Among them, the first static contact 200 is disposed on the housing 100, and the first static contact 200 is provided with a first static contact portion 210; the moving contact 300 is movably disposed on the housing 100, the moving contact 300 is provided with a moving contact portion 310, and the moving contact portion 310 is used to contact or separate from the first static contact portion 210; the first lead-out member 400 includes a first section 410 extending along the thickness direction of the moving contact 300 and a second section 420 extending along the length direction of the moving contact 300, and the second lead-out member 500 includes a fifth section 520 extending along the length direction of the moving contact 300 and a sixth section 530 extending along the thickness direction of the moving contact 300.

[0045] First of all, it should be noted that an installation plane is usually provided on the moving contact 300. The moving contact part 310 can be installed on the installation plane of the moving contact 300 by processes such as welding. On this basis, the "thickness direction of the moving contact" mentioned in the embodiments of the present invention refers to the direction perpendicular to the installation plane of the moving contact 300 for installing the moving contact part 310. Therefore, further, it can be understood that the "width direction of the moving contact 300" refers to the direction parallel to the installation plane of the moving contact 300 for installing the moving contact part 310 and perpendicular to the length direction of the moving contact.

[0046] Therefore, in the state where the moving contact part 310 is in contact with the first static contact part 210, that is, when the moving contact 300 and the static contact are closed, a conductive loop is formed by sequentially connecting the second section 420, the first section 410, the first static contact 200, the moving contact 300, the fifth section 520, and the sixth section 530. And the current flow direction through the second section 420 and the current flow direction through the fifth section 520 are both opposite to the current flow direction through the moving contact 300, so that the magnetic fields generated by the second section 420 and the fifth section 520 effectively act on the moving contact 300, thereby increasing the contact force between the moving contact 300 and the static contact, and thus avoiding the repulsion and separation between the moving contact 300 and the static contact under abnormal circuit fault states such as abnormal current, ensuring the stable contact between the moving contact 300 and the static contact, and effectively improving the operation stability of the contact assembly and the withstand capacity of short-circuit current.

[0047] In addition, it should be noted that the same or opposite current flow directions of the two mentioned in this embodiment refer to: the two current flow directions are substantially parallel, that is, the two current flow directions can refer to a parallel relationship, or it can refer to that they have components along the length extension direction of the moving contact. At this time, the two current flow directions can be set at a certain angle.

[0048] It can be seen from this that by reasonably designing the structures of the first lead-out part 400 and the second lead-out part 500, the load switch 10 provided by the present invention can effectively achieve the magnetic enhancement effect, and due to its simple structure, the production cost is also low.

[0049] It is worth mentioning that the first static contact 200 and the first lead-out part 400 are integrally formed.

[0050] Furthermore, the load switch 10 further includes a flexible member 600. One end of the moving contact 300 is provided with a moving contact part 310, and the other end is rotatably arranged on the housing 100 and connected to the fifth section 520 through at least one of the flexible member 600 or the clamping member.

[0051] In this embodiment, the load switch 10 is of a single-break structure, that is, one end of the moving contact 300 is provided with a moving contact part 310, the other end is rotatably arranged on the housing 100, and this end is also connected to the fifth section 520 through the flexible member 600.

[0052] Optionally, the flexible member 600 may be, but is not limited to, a flexible connecting wire.

[0053] Furthermore, the first lead member 400 includes a third section 430. The first section 410, the second section 420, and the third section 430 are connected in sequence. The first section 410 is connected to the first stationary contact 200. When the switch is closed, the second section 420 is located on the side of the moving contact portion 310 away from the first stationary contact portion 210, and the current flowing through the second section 420 is in the opposite direction to the current flowing through the moving contact 300. The third section 430 is used to connect to an external power source or wire.

[0054] In this embodiment, the first section 410 and the sixth section 530 are located on both sides of the first stationary contact portion 210.

[0055] It should be noted that the first lead member 400 further includes a first lead end 440. One end of the first lead end 440 is connected to the third section 430, and the other end is used to extend out of the housing 100 to connect to an external power source or wire.

[0056] In this embodiment, in the state where the moving contact 300 and the first stationary contact 200 are closed, the second lead member 500, the moving contact 300, the first stationary contact 200, the first section 410, the second section 420, the third section 430, and the first lead end 440, by making the current flowing through the second section 420 in the opposite direction to the current flowing through the moving contact 300, so that the magnetic field generated by the second section 420 acts on the moving contact 300, and thereby increases the contact force between the moving contact 300 and the stationary contact.

[0057] Specifically, the first section 410, the second section 420, and the third section 430 are located in the same vertical plane, and the first section 410, the second section 420, and the third section 430 form a U-shaped structure.

[0058] Furthermore, the second lead member 500 includes a fourth section 510. The fourth section 510, the fifth section 520, and the sixth section 530 are connected in sequence. The fourth section 510 is used to connect to the moving contact 300. The fifth section 520 is located at the end of the moving contact portion 310 away from the stationary contact portion, and the current flowing through the fifth section 520 is in the opposite direction to the current flowing through the moving contact 300. The sixth section 530 is used to connect to an external power source or wire.

[0059] In this embodiment, the second lead member 500 further includes a second lead end 540. One end of the second lead end 540 is connected to the sixth section 530, and the other end is for extending out of the housing 100 to be connected to an external power source or a wire. Therefore, when the moving contact portion 310 of the moving contact 300 contacts the first static contact portion 210 of the static contact, the second lead end 540, the sixth section 530, the fifth section 520, the fourth section 510, the moving contact 300, the first static contact 200, the first section 410, the second section 420, the third section 430, and the first lead end 440 are sequentially connected to form a conductive loop. By making the current flow direction through the fifth section 520 opposite to the current flow direction through the moving contact 300, the magnetic field generated by the fifth section 520 acts on the moving contact 300, thereby increasing the contact force between the moving contact 300 and the static contact.

[0060] The arrangement of the fourth section 510 facilitates the connection between the moving contact 300 and the second lead member 500. For example, one end of the flexible member 600 can be welded to the fixed end of the moving contact 300, and one end of the flexible member 600 can be welded to the fourth section 510.

[0061] Specifically, the fourth section 510 is located directly above the moving contact 300. The fifth section 520 and the sixth section 530 are located in the same vertical plane, and the fifth section 520 and the sixth section 530 are in an L shape.

[0062] Furthermore, the plane where the fifth section 520 and the sixth section 530 are located is parallel to the plane where the first section 410, the second section 420, and the third section 430 are located, and they are respectively located on both sides of the width direction of the moving contact 300. Therefore, the second section 420 and the fifth section 520 are oppositely arranged on both sides of the first static contact 200 and the moving contact 300. In other words, the second section 420 and the fifth section 520 are oppositely arranged on both sides of the plane where the moving path of the moving contact 300 is located.

[0063] Furthermore, the first lead member 400 further includes a third section 430 and a first lead end 440. The first section 410, the second section 420, the third section 430, and the first lead end 440 are sequentially connected. The third section 430 extends along the thickness direction of the moving contact 300. The sixth section 530 is connected to the second lead end 540. The first lead end 440 and the second lead end 540 are located on the same side of the moving contact 300, making the spatial layout of the load switch more reasonable and facilitating the wiring of the load switch to external devices.

[0064] Specifically, the second section 420 and the fifth section 520 are located on the side of the moving contact 300 facing away from the first static contact portion 210 during closing.

[0065] Further, in a state where the moving contact portion 310 is in contact with the first stationary contact portion 210, in the vertical height direction of the housing 100, the bottom wall of at least a part of the second section 420 and at least a part of the fifth section 520 is not lower than the bottom wall of the moving contact 300. The "bottom wall" mentioned in this embodiment refers to the side closer to the first stationary contact portion 210 in the thickness direction.

[0066] Further, the bottom walls of the second section 420 and the fifth section 520 are not lower than the top wall of the moving contact 300, that is, their projections along the width direction of the moving contact 300 do not overlap, so as to further improve the withstand capacity of the short-circuit current.

[0067] Further, the load switch 10 further includes a magnetic enhancement member 700. In a state where the moving contact portion 310 is in contact with the first stationary contact portion 210, the magnetic enhancement member 700 is disposed on one side or both sides in the width direction of the moving contact 300.

[0068] Preferably, at least one is provided on each of the two sides in the width direction of the moving contact 300, and the two are disposed oppositely. Specifically, one of the magnetic enhancement members 700 and the first lead member 400 are on the same side of the moving contact 300, that is, the magnetic enhancement member 700 is substantially in the same plane as the first section 410, the second section 420, and the third section 430. And since the first section 410, the second section 420, and the third section 430 are U-shaped, the magnetic enhancement member 700 is located inside the U-shape formed between the first section 410, the second section 420, and the third section 430; the other magnetic enhancement member 700 and the second lead member 500 are on the same side of the moving contact 300, that is, the magnetic enhancement member 700 is substantially in the same plane as the fourth section 510 and the fifth section 520. Since the fifth section 520 and the sixth section 530 are L-shaped, the magnetic enhancement member 700 is located at the concave portion of the L-shape.

[0069] Therefore, by providing the magnetic enhancement member 700, the magnetic resistance is reduced when the moving contact 300 is in contact and closed with the first stationary contact 200, so that the moving contact 300 further has a tendency to move toward the first stationary contact 200, thereby further increasing the contact force between the moving contact 300 and the first stationary contact 200.

[0070] Specifically, the magnetic enhancement members 700 are disposed oppositely and the magnetic enhancement members 700 on both sides in the width direction of the moving contact 300 are disposed oppositely.

[0071] Of course, in other embodiments of the invention, the load switch 10 may also adopt a double-break structure, such as Figures 3 to 6 as shown, the moving contact portion 310 includes a first contact portion 311 and a second contact portion 312. The first contact portion 311 is used to contact or separate from the first stationary contact portion 210;

[0072] The load switch 10 further includes a second stationary contact 800. Different from the previous embodiment, the fourth section 510 is connected to the second stationary contact 800. The second stationary contact 800 is provided with a second stationary contact portion 810, and the second stationary contact portion 810 is used to contact or separate from the second contact portion 312.

[0073] In this embodiment, the moving contact 300 is slidably disposed in the housing 100. A first contact portion 311 and a second contact portion 312 are respectively disposed at two ends of the moving contact 300, so that the first contact portion 311 and the second contact portion 312 of the moving contact 300 can respectively contact the first stationary contact 200 and the second stationary contact portion 810. In this case, the second lead-out end 540, the sixth section 530, the fifth section 520, the fourth section 510, the second stationary contact portion 810, the moving contact 300, the first stationary contact 200, the first section 410, the second section 420, the third section 430, and the first lead-out end 440 can form an electrical conduction path.

[0074] In this embodiment, the third section 430 extends along the thickness direction of the moving contact 300. The third section 430 is used to connect to an external power source or a wire. The first section 410 and the sixth section 530 are located on both sides of the first stationary contact portion 210. The third section 430 and the fourth section 510 are located on both sides of the second stationary contact portion 810.

[0075] Specifically, in this embodiment, the fourth section 510, the fifth section 520, and the sixth section 530 are located in the same plane, and the plane where the fourth section 510, the fifth section 520, and the sixth section 530 are located is also parallel to the plane where the first section 410, the second section 420, and the third section 430 are located. The fourth section 510, the fifth section 520, and the sixth section 530 are in a U shape.

[0076] It is worth mentioning that, in this embodiment, the magnetic enhancement member 700 on the same side as the second lead-out member 500 is located inside the U shape formed by the fourth section 510, the fifth section 520, and the sixth section 530.

[0077] In summary, the embodiment of the present invention provides a load switch 10. When the moving contact part 310 is in contact with the first static contact part 210, that is, when the moving contact 300 and the static contact are closed, the current can flow through the conductive loop formed by the second section 420, the first section 410, the first static contact 200, the moving contact 300, the fifth section 520, and the sixth section 530 in sequence. Moreover, the current flow direction through the second section 420 and the current flow direction through the fifth section 520 are both opposite to the current flow direction through the moving contact 300, so that the magnetic fields generated by the second section 420 and the fifth section 520 effectively act on the moving contact 300, thereby increasing the contact force between the moving contact 300 and the static contact, and thus avoiding the separation caused by the repulsive force between the moving contact 300 and the static contact under abnormal current and other abnormal circuit fault states, ensuring the stable contact between the moving contact 300 and the static contact, and effectively improving the operation stability of the contact assembly and the short-circuit current withstand capacity.

[0078] Furthermore, the embodiment of the present invention also provides an electric meter, including the load switch 10 in any of the above embodiments.

[0079] As described above, the above are only the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed by the present invention should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.

Claims

1. A load switch, characterized in that: include: Housing (100); A first stationary contact (200), the first stationary contact (200) being arranged on the housing (100), the first stationary contact (200) being provided with a first stationary contact portion (210); A moving contact (300), the moving contact (300) being movably disposed on the housing (100), the moving contact (300) being provided with a moving contact portion (310), the moving contact portion (310) being used to contact or separate from the first stationary contact portion (210); A first lead-out piece (400), the first lead-out piece (400) comprising a first section (410) extending along a thickness direction of the moving contact (300) and a second section (420) extending along a length direction of the moving contact (300); A second lead-out piece (500), the second lead-out piece (500) comprising a fifth section (520) extending along the length direction of the moving contact (300) and a sixth section (530) extending along the thickness direction of the moving contact (300); The second section (420) and the fifth section (520) are respectively located on both sides of the width direction of the moving contact (300); in a closed state, the second section (420), the first section (410), the first static contact (200), the moving contact (300), the fifth section (520), and the sixth section (530) form a conductive loop, and the current flow direction through the second section (420) and the current flow direction through the fifth section (520) are opposite to the current flow direction through the moving contact (300).

2. The load switch according to claim 1, characterized in that: The moving contact part (310) is disposed at one end of the moving contact (300), and the other end is rotatably disposed on the housing (100) and connected to the fifth section (520) via a flexible member (600) and / or a clamping member.

3. The load switch according to claim 2, characterized in that: The first section (410) and the sixth section (530) are arranged opposite to each other on two sides of the first static contact portion (210).

4. The load switch according to claim 3, characterized in that: The first lead-out member (400) further includes a third section (430) and a first lead-out end (440); the first section (410), the second section (420), the third section (430) and the first lead-out end (440) are connected in sequence, and the third section (430) extends along the thickness direction of the moving contact (300); the sixth section (530) is connected to the second lead-out end (540), and the first lead-out end (440) and the second lead-out end (540) are located on the same side of the moving contact (300).

5. The load switch according to claim 1, characterized in that: The moving contact portion (310) comprises a first contact portion (311) and a second contact portion (312), wherein the first contact portion (311) is used to contact or separate from the first stationary contact portion (210); The second lead-out member (500) further includes a fourth section (510) connected to the fifth section (520), and the load switch further includes a second static contact (800), the second static contact (800) being connected to the fourth section (510), the second static contact (800) being provided with a second static contact portion (810), and the second static contact portion (810) being used to contact or separate from the second contact portion (312).

6. The load switch according to claim 5, characterized in that: The first lead-out member (400) further includes a third section (430), the first section (410), the second section (420) and the third section (430) are connected in sequence, the third section (430) extends along the thickness direction of the moving contact (300), and the third section (430) is used to connect to an external power supply or a wire, the first section (410) and the sixth section (530) are located on both sides of the first stationary contact portion (210), and the third section (430) and the fourth section (510) are located on both sides of the second stationary contact portion (810).

7. The load switch according to any one of claims 1 to 6, characterized in that: In the closed state, the second section (420) and the fifth section (520) are located on a side of the moving contact (300) facing away from the first stationary contact portion (210).

8. The load switch according to claim 7, characterized in that: In the closed state, at least part of the bottom wall of the second section (420) and / or the fifth section (520) is not lower than the bottom wall of the moving contact (300).

9. The load switch according to claim 1, characterized in that: The load switch further comprises a magnetizing component (700), and when the moving contact portion (310) is in contact with the first stationary contact portion (210), the magnetizing component (700) is arranged on one side or both sides in the width direction of the moving contact (300).

10. The load switch according to claim 9, characterized in that: At least one magnetizing component (700) is disposed opposite to each other on both sides of the moving contact (300) in the width direction.

11. An electric meter, characterized in that: Comprising a load switch as described in any one of claims 1-10.

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