Electrical assembly and ammeter

Abstract

The utility model provides an electrical assembly and an ammeter, and relates to the technical field of electrical equipment. The electrical assembly comprises a load switch and a mutual inductor; the load switches and the mutual inductors are arranged at intervals; the load switch comprises a mounting shell, a moving contact, a static contact and an electromagnetic mechanism, the moving contact, the static contact and the electromagnetic mechanism are arranged in the mounting shell, one end of the moving contact is in transmission connection with the electromagnetic mechanism, and the electromagnetic mechanism is used for driving the moving contact to rotate so that the other end of the moving contact and the static contact can be switched on or switched off. The load switch and the mutual inductor are arranged in the shell at intervals, so that the layout of the load switch and the mutual inductor in the shell is reasonable, the assembly or disassembly efficiency of the load switch and the mutual inductor is improved, the operation complexity is reduced, and misoperation of operators is avoided; and a certain distance is kept between the mutual inductor and the load switch, so that the mutual inductor and the load switch can be conveniently and respectively connected, the circuit can be shortened, and the total resistance value of the circuit can be reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to electrical equipment technical field, specifically, relate to an electrical assembly and electric meter. BACKGROUND

[0002] The electrical equipment usually is provided with load switch and mutual inductor, the load switch can control the on-off of circuit, and plays the role of isolating power supply, short circuit protection etc., and the mutual inductor can play the role of monitoring current, to ensure the power safety of electrical equipment. However, the internal structure of the existing electrical equipment is complex, and the layout of electrical elements such as load switch and mutual inductor is unreasonable, which is not convenient for assembly, maintenance or replacement. SUMMARY

[0003] The utility model discloses a kind of electrical assembly and electric meter, its overall layout is reasonable, improve the assembly or disassembly efficiency of load switch and mutual inductor, also reduce the complexity of operation, avoid operator misoperation.

[0004] The embodiment of the utility model is implemented as follows:

[0005] Firstly, the utility model provides an electrical assembly, including load switch, mutual inductor;

[0006] The load switch and the mutual inductor are arranged at intervals;

[0007] The load switch includes installation shell and the moving contact, static contact, electromagnetic mechanism arranged in the installation shell, one end of the moving contact is drivingly connected with the electromagnetic mechanism, and the electromagnetic mechanism is used to drive the moving contact to rotate, so that the other end of the moving contact is closed or opened with the static contact.

[0008] In optional implementation, the moving contact, the static contact, the electromagnetic mechanism and the mutual inductor are sequentially arranged along a first direction;

[0009] The electromagnetic mechanism includes armature piece, coil assembly, first yoke and second yoke, the first yoke and the second yoke are connected with the coil assembly and are magnetically attracted with the armature piece, the armature piece is drivingly connected with the moving contact, and the first yoke and the second yoke are sequentially arranged along a second direction;

[0010] The first direction and the second direction are perpendicularly arranged.

[0011] In optional implementation, the electrical assembly further includes shell, terminal block, the terminal block, the load switch and the mutual inductor are arranged in the shell;

[0012] The terminal seat comprises a first connecting end, a second connecting end, a third connecting end and a fourth connecting end arranged in sequence along the first direction, the load switch further comprises a connecting head connected with the moving contact head, the connecting head and the stationary contact head are connected with the first connecting end and the second connecting end respectively, the transformer is provided with a through hole, the third connecting end and the fourth connecting end are connected through a conductor and pass through the through hole; the load switch and the first connecting end / second connecting end are arranged in sequence along the second direction, and the transformer and the third connecting end / fourth connecting end are arranged in sequence along the second direction.

[0013] In an optional embodiment, the load switch further comprises an arc extinguishing structure, the arc extinguishing structure is arranged in the shell and located between the stationary contact head and the connecting head, and the arc extinguishing structure is also located outside a rotation path of the moving contact head relative to the stationary contact head.

[0014] In an optional embodiment, the electrical assembly further comprises a shielding cover, the shielding cover at least comprises a first shielding plate, a second shielding plate and a third shielding plate connected in sequence, the first shielding plate and the third shielding plate are arranged in parallel and are respectively arranged on both sides of the armature piece and at least part of the moving contact head; the second shielding plate is arranged on a side of the moving contact head away from the electromagnetic mechanism, and the second shielding plate, the moving contact head and the electromagnetic mechanism are arranged in sequence along the first direction.

[0015] In an optional embodiment, the first yoke and the second yoke are in an asymmetric structure, and the total length of the first yoke is less than the total length of the second yoke.

[0016] In an optional embodiment, the load switch further comprises a connecting rod, one end of the connecting rod is connected with the moving contact head, and the other end of the connecting rod is connected with the armature piece.

[0017] In an optional embodiment, the rotation center of the moving contact head, the rotation connection point of the connecting rod and the moving contact head, the rotation connection point of the connecting rod and the armature piece, and the rotation center of the armature piece are sequentially connected in a U-shaped arrangement.

[0018] In an optional embodiment, in the case that the moving contact head is converted from a closed state to an open state or from an open state to a closed state, the angle of rotation of the moving contact head is a first angle, the angle of rotation of the armature piece of the electromagnetic mechanism is a second angle, and the absolute value difference between the first angle and the second angle is less than or equal to ±5°.

[0019] In a second aspect, the utility model provides a kind of electric meter, comprising the electrical assembly as described in any one of the preceding embodiments.

[0020] The beneficial effects of the electrical assembly and the electric meter provided by the embodiment of the utility model include: energizing the electromagnetic mechanism to make the armature piece rotate counterclockwise or clockwise, and further drive the moving contact to rotate, so as to realize the closing or opening of the moving contact and the static contact, the switching of the closing and opening state is realized through the rotary motion of the moving contact, the mechanical stress and the arc impact on the contact are reduced, and better stability and reliability are achieved; Furthermore, the layout of the moving contact, the static contact and the electromagnetic mechanism is reasonable, and the clear layout of the structure makes each electrical element easy to disassemble and install, thereby simplifying the maintenance process and reducing the maintenance time and cost; and by arranging the load switch and the transformer at intervals, the layout of the load switch and the transformer in the shell is reasonable, the installation is not too compact, not only the assembly or disassembly efficiency of the load switch and the transformer is improved, but also the operation complexity is reduced, and the operator's misoperation is effectively avoided; Furthermore, by maintaining a certain distance between the transformer and the load switch, the transformer and the load switch are respectively wired, so that the line is shortened and the total resistance of the circuit is reduced; in addition, the current detected by the transformer is used to drive the load switch, the current can be cut off in time when the circuit is abnormal, thereby improving the safety performance of the electrical assembly and reducing the risk of electricity. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment, and it should be understood that the following drawings only show some embodiments of the utility model, and should not be regarded as the limitation to the scope, and for the ordinary skilled in the art, other related drawings can be obtained without creative labor on the basis of these drawings.

[0022] Fig. 1 The electrical assembly structure schematic view provided by the embodiment of the utility model;

[0023] Fig. 2 The load switch structure schematic view provided by the embodiment of the utility model;

[0024] Fig. 3 The load switch part structure schematic view one provided by the embodiment of the utility model;

[0025] Fig. 4 The load switch part structure schematic view two provided by the embodiment of the utility model.

[0026] Icon: 10-electrical assembly; 100-load switch; 110-mounting shell; 120-moving contact; 130-stationary contact; 140-electromagnetic mechanism; 141-armature piece; 1411-magnetic attraction part; 142-coil assembly; 143-first yoke; 144-second yoke; 150-connection head; 160-arc extinguishing structure; 170-link; 180-shield cover; 181-first shield plate; 182-second shield plate; 183-third shield plate; 200-transformer; 300-housing; 400-terminal block; 410-first connection end; 420-second connection end; 430-third connection end; 440-fourth connection end. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0029] It should be noted that: similar reference numbers and letters represent 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.

[0030] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, or the orientations or positional relationships in which the product of the present application is usually placed during use, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third", etc. are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0031] In addition, the terms "horizontal", "vertical", and the like do not mean that the components must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that it is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0032] In the description of the utility model, it should be explained that, unless otherwise specified and limited, the terms "set", "install", "connect", "connect" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to specific circumstances.

[0033] Generally, load switches and transformers are arranged in electrical equipment, the load switches can control the on-off of the circuit and play the role of isolating power supply and short circuit protection, and the transformers can play the role of monitoring current, so as to ensure the power safety of electrical equipment. However, the internal structure of the existing electrical equipment is complex, and the layout of electrical elements such as load switches and transformers is unreasonable, which is not convenient for assembling, repairing or replacing.

[0034] Based on the above problems, please refer to Figs. 1 to 4 The utility model embodiment provides a kind of electrical assembly 10, applied to electrical equipment field, especially can be applicable to equipment such as electric meter.

[0035] In detail, electrical assembly 10 includes load switch 100, transformer 200 and shell 300.

[0036] Among them, load switch 100 and transformer 200 are arranged at intervals in shell 300, so that the layout of load switch 100 and transformer 200 in shell 300 is reasonable, to avoid too compact installation, not only improve the assembly or disassembly efficiency of load switch 100 and transformer 200, but also reduce the operation complexity, to avoid operator misoperation.

[0037] Load switch 100 includes mounting shell 110 and movable contact 120, static contact 130 and electromagnetic mechanism 140 arranged in mounting shell 110, one end of movable contact 120 is drivingly connected with electromagnetic mechanism 140, electromagnetic mechanism 140 is used to drive movable contact 120 to rotate, to make the other end of movable contact 120 and static contact 130 close or open.

[0038] In the embodiment, the electromagnetic mechanism 140 is energized to rotate the armature 141 counterclockwise or clockwise, thereby driving the movable contact 120 to rotate synchronously, so as to realize the contact of the contact point of the movable contact 120 with the static contact 130 or the separation of the contact point of the movable contact 120 from the static contact 130, that is, realize the closing or opening of the movable contact 120 and the static contact 130. The switching of the closing and opening states is realized by the rotary motion of the movable contact, which reduces the mechanical stress and the impact of the arc on the contact, and has better stability and reliability. Furthermore, the layout of the movable contact 120, the static contact 130 and the electromagnetic mechanism 140 is reasonable, and the clear layout of the structure makes it easy to disassemble and install the electrical components, thereby simplifying the maintenance process and reducing the maintenance time and cost.

[0039] It can be understood that, since the transformer 200 has the function of current detection, the safety performance of the electrical assembly 10 can be improved, and the risk of electricity use can be reduced.

[0040] Further, the electromagnetic mechanism 140 includes a coil assembly 142, an armature 141, a first yoke 143 and a second yoke 144, the first yoke 143 and the second yoke 144 are connected with the coil assembly 142 and are magnetically attracted to the armature 141, and the armature 141 is drivingly connected with the movable contact 120.

[0041] It can be understood that the coil assembly 142 includes a coil, a coil skeleton and an iron core, the coil is arranged on the coil skeleton, the iron core is arranged in the coil skeleton, and the first yoke 143 and the second yoke 144 are respectively connected with the iron core.

[0042] Therefore, by energizing the coil assembly 142, the first yoke 143 and the second yoke 144 can generate magnetism to attract the armature 141, so as to drive the movable contact 120 to rotate through the armature 141, and finally realize the closing or opening of the movable contact 120 and the static contact 130.

[0043] Further, the movable contact 120, the static contact 130, the electromagnetic mechanism 140 and the transformer 200 are arranged in sequence along a first direction (such as the x direction shown in the figure), and the first yoke 143 and the second yoke 144 are arranged in sequence along a second direction (such as the y direction shown in the figure); the first direction and the second direction are arranged vertically, so that the load switch 100 meets the performance requirements while the overall volume is reduced, and the layout of the electrical assembly 10 is more reasonable.

[0044] Specifically, compared with the moving contact 120, the electromagnetic mechanism 140 is arranged closer to the mutual inductor 200, that is, the electromagnetic mechanism 140 is distributed on the right side of the shell 300, so that the distance between the electromagnetic mechanism 140 and the outside is as large as possible, thereby avoiding the influence of external magnetic sources on the electromagnetic mechanism 140, so that the load switch 100 cannot accurately open and close; secondly, the mutual inductor 200 is arranged at a certain distance from the moving contact 120 and the static contact 130 of the load switch 100, so as to facilitate wiring between each other and other devices.

[0045] Further, the electrical assembly 10 further comprises a terminal block 400 arranged in the shell 300.

[0046] The terminal block 400 comprises a first connecting end 410, a second connecting end 420, a third connecting end 430 and a fourth connecting end 440 arranged in sequence along a first direction, and the load switch 100 further comprises a connecting head 150 connected with the moving contact 120, the connecting head 150 and the static contact 130 are connected with the first connecting end 410 and the second connecting end 420 respectively, the mutual inductor 200 is provided with a through hole, the third connecting end 430 and the fourth connecting end 440 are connected by a conductor, and the conductor passes through the through hole.

[0047] In the embodiment, the conductor is a copper bar, as shown in the figure, the first connecting end 410, the second connecting end 420, the third connecting end 430 and the fourth connecting end 440 are arranged in sequence from left to right, the connecting head 150 is connected with the first connecting end 410, the static contact 130 is connected with the second connecting end 420, and the third connecting end 430 and the fourth connecting end 440 are connected by a copper bar and pass through the mutual inductor 200 for detection.

[0048] In detail, the load switch 100 and the first connecting end 410 / second connecting end 420 are arranged in sequence along a second direction, and the mutual inductor 200 and the third connecting end 430 / fourth connecting end 440 are arranged in sequence along the second direction, so that the electrical assembly 10 is reasonably arranged, wiring is facilitated, and the line is shortened.

[0049] Further, the first yoke 143 and the second yoke 144 are in an asymmetric structure.

[0050] In the embodiment, since the length of the shell 300 in the horizontal direction is less than the length in the vertical direction, in order to fully utilize the installation space of the shell 300 and meet the requirement of load switch opening distance, the first yoke 143 and the second yoke 144 are in an asymmetric structure, so as to facilitate the installation of the moving contact 120 and other electrical elements in the shell 300.

[0051] Specifically, the length of the first yoke 143 is less than the length of the second yoke 144.

[0052] In the embodiment, the first yoke 143 is connected to the top of the coil, and the second yoke 144 is connected to the bottom of the coil, so that the position of the armature 141 is close to the top relative to the horizontal center line of the coil by making the length of the first yoke 143 less than the length of the second yoke 144.

[0053] Further, the load switch 100 further comprises an arc extinguishing structure 160, which is arranged in the shell 300 and located between the static contact 130 and the connecting head 150, and is also located outside the rotation path of the dynamic contact 120 relative to the static contact 130.

[0054] In the embodiment, the arc extinguishing structure 160 is arranged between the static contact 130 and the connecting head 150, and is located outside the rotation path of the dynamic contact 120 relative to the static contact 130, so that the arc extinguishing mechanism is used to extinguish the arc generated between the dynamic contact 120 and the static contact 130, thereby meeting the high breaking requirement of the load switch 100.

[0055] It should be noted that the load switch 100 further comprises a connecting rod 170, one end of which is connected to the dynamic contact 120, and the other end is connected to the armature 141.

[0056] In detail, the rotation center of the dynamic contact 120, the rotation connection point of the connecting rod 170 and the dynamic contact 120, the rotation connection point of the connecting rod 170 and the armature 141, and the rotation center of the armature 141 are sequentially connected to form a U-shaped arrangement, so that a larger driving torque can be generated, a larger torque transmission ratio is achieved, and a compact layout is also achieved, which is beneficial to reducing the volume of the load switch 100.

[0057] Further, in the case where the dynamic contact 120 is converted from the closed state to the open state or from the open state to the closed state, the angle of rotation of the dynamic contact 120 is a first angle, and the angle of rotation of the armature 141 is a second angle, and the absolute value difference between the first angle and the second angle is less than or equal to ±5°. By making the absolute value difference between the first angle of rotation of the dynamic contact 120 and the second angle of rotation of the armature 141 be ±5°, the dynamic contact 120 and the armature 141 have a higher transmission ratio, so that the armature 141 rotation angle and the contact rotation angle are close in value without increasing the power consumption of the electromagnetic mechanism 140, thereby achieving the purpose of improving the initial attraction torque. Even if the torque of the armature 141 increases, it still meets the short-circuit design requirements.

[0058] Specifically, in the embodiment, the connecting rod 170 is arranged to transmit the rotation of the dynamic contact 120 to the armature 141, so that the absolute value difference between the first angle of rotation of the dynamic contact 120 and the second angle of rotation of the armature 141 is ±5°.

[0059] It should be further noted that the angle of rotation of the moving contact 120 is the first angle, which means that the angle of rotation of the moving contact 120 is the first angle when the moving contact 120 is switched between the closing and opening states. The middle part of the armature 141 is rotatable relative to the housing 300, and the upper and lower sides of the armature 141 are provided with two magnetically opposite magnetic attraction parts 1411. After the first yoke 143 and the second yoke 144 generate magnetism, they are attracted or repelled by the magnetic attraction parts 1411 of the armature 141. Therefore, the angle of rotation of the armature 141 is the second angle, which means that the angle of rotation of the line connecting the center of rotation of the armature 141 and any magnetic attraction part 1411 is the second angle when the first yoke 143 and the second yoke 144 are switched from the repelling state to the attracting state or from the attracting state to the repelling state.

[0060] Further, in order to avoid the electrical assembly 10 being affected by external magnetic force, causing the moving contact 120 to be mistakenly closed or opened with the static contact 130, the electrical assembly 10 further comprises a shielding cover 180, which at least covers the load switch 100.

[0061] Further, the shielding cover 180 at least comprises a first shielding plate 181, a second shielding plate 182 and a third shielding plate 183 connected in sequence, and the first shielding plate 181 and the third shielding plate 183 are arranged in parallel and are arranged on both sides of the armature 141 and at least part of the moving contact 120 respectively.

[0062] In the embodiment, the first shielding plate 181, the second shielding plate 182 and the third shielding plate 183 connected in sequence are in a U-shaped structure, so that the shielding cover 180 can be sleeved outside the armature 141 and at least part of the moving contact 120 from one side of the housing 300, so that the electromagnetic mechanism 140 of the load switch 100 is not affected by the external magnetic source, and the moving contact 120 is prevented from rotating under the influence of external magnetic force.

[0063] Further, the second shielding plate 182 is arranged on the side of the moving contact 120 away from the electromagnetic mechanism 140, and the second shielding plate 182, the moving contact 120 and the electromagnetic mechanism 140 are arranged in sequence along the first direction.

[0064] In the embodiment, the shielding cover 180 can be sleeved outside the armature 141 and at least part of the moving contact 120 from the side of the housing 300 away from the electromagnetic mechanism 140.

[0065] In summary, the utility model provides an electrical assembly 10, which is energized by the electromagnetic mechanism 140, so that the armature 141 rotates counterclockwise or clockwise, and the moving contact 120 is driven to rotate synchronously by the armature 141, so as to realize the closing or opening of the moving contact 120 and the static contact 130.

[0066] Moreover, the layout of the moving contact 120, the stationary contact 130, the armature piece 141 and the electromagnetic mechanism 140 is reasonable, and the clear layout makes each electrical element easy to disassemble and install, thereby simplifying the maintenance process, reducing the maintenance time and cost; by spacing the load switch 100 and the transformer 200 in the shell 300, the layout of the load switch 100 and the transformer 200 in the shell 300 is reasonable, avoiding too compact installation, not only improving the assembly or disassembly efficiency of the load switch 100 and the transformer 200, but also reducing the operation complexity, effectively avoiding the operator's misoperation; moreover, by maintaining a certain distance between the transformer 200 and the load switch 100, the transformer 200 and the load switch 100 are respectively facilitated to be wired, so that the line can be shortened and the total resistance value of the circuit can be reduced.

[0067] And the current condition detected by the transformer 200 drives the load switch 100 to cut off the current in time when the circuit is abnormal, thereby improving the safety performance of the electrical assembly 10 and reducing the electricity risk.

[0068] Further, the utility model embodiment still provides a kind of electric meter, including electrical assembly 10 in above-mentioned embodiment.

[0069] The above is only preferred embodiment of the utility model, and is not used to limit the utility model, for the person skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. An electrical component, characterized in that, Includes load switch (100) and instrument transformer (200); The load switch (100) and the current transformer (200) are spaced apart; The load switch (100) includes a mounting housing (110) and a moving contact (120), a stationary contact (130), and an electromagnetic mechanism (140) disposed within the mounting housing (110). One end of the moving contact (120) is connected to the electromagnetic mechanism (140) for transmission. The electromagnetic mechanism (140) is used to drive the moving contact (120) to rotate so that the other end of the moving contact (120) is closed or opened with the stationary contact (130).

2. The electrical component according to claim 1, characterized in that, The moving contact (120), the stationary contact (130), the electromagnetic mechanism (140), and the current transformer (200) are arranged sequentially along the first direction; The electromagnetic mechanism (140) includes an armature (141), a coil assembly (142), a first yoke (143), and a second yoke (144). The first yoke (143) and the second yoke (144) are both connected to the coil assembly (142) and magnetically attracted to the armature (141). The armature (141) is drivenly connected to the moving contact (120). The first yoke (143) and the second yoke (144) are arranged sequentially along a second direction. The first direction and the second direction are set perpendicularly.

3. The electrical component according to claim 2, characterized in that, The electrical components also include a housing (300), a terminal block (400), the terminal block (400), the load switch (100), and the current transformer (200) disposed within the housing (300). The terminal block (400) includes a first connection end (410), a second connection end (420), a third connection end (430), and a fourth connection end (440) arranged sequentially along the first direction. The load switch (100) also includes a connector (150) connected to the moving contact (120). The connector (150) and the stationary contact (130) are respectively connected to the first connection end (410) and the second connection end (420). The current transformer (200) is provided with a through hole. The third connection end (430) and the fourth connection end (440) are connected by a conductor and pass through the through hole. The load switch (100) and the first connection end (410) / the second connection end (420) are arranged sequentially along the second direction. The current transformer (200) and the third connection end (430) / the fourth connection end (440) are arranged sequentially along the second direction.

4. The electrical component according to claim 3, characterized in that, The load switch (100) further includes an arc extinguishing structure (160), which is disposed in the housing (300) and located between the stationary contact (130) and the connector (150). The arc extinguishing structure (160) is also located outside the rotation path of the moving contact (120) relative to the stationary contact (130).

5. The electrical component according to claim 2, characterized in that, The electrical component further includes a shielding cover (180), which includes at least a first shielding plate (181), a second shielding plate (182), and a third shielding plate (183) connected in sequence. The first shielding plate (181) and the third shielding plate (183) are arranged in parallel and are respectively disposed on both sides of the armature (141) and at least part of the moving contact (120). The second shielding plate (182) is disposed on the side of the moving contact (120) away from the electromagnetic mechanism (140). The second shielding plate (182), the moving contact (120), and the electromagnetic mechanism (140) are arranged in sequence along the first direction.

6. The electrical component according to claim 2, characterized in that, The first yoke (143) and the second yoke (144) have an asymmetrical structure, and the total length of the first yoke (143) is less than the total length of the second yoke (144).

7. The electrical component according to claim 2, characterized in that, The load switch (100) also includes a connecting rod (170), one end of which is connected to the moving contact (120) and the other end is connected to the armature (141).

8. The electrical component according to claim 7, characterized in that, The rotation center of the moving contact (120), the rotation connection point between the connecting rod (170) and the moving contact (120), the rotation connection point between the connecting rod (170) and the armature (141), and the rotation center of the armature (141) are arranged in a U-shape when connected in sequence.

9. The electrical component according to any one of claims 1-8, characterized in that, When the moving contact (120) changes from the closed state to the open state or from the open state to the closed state, the angle at which the moving contact (120) rotates is the first angle, and the angle at which the armature (141) of the electromagnetic mechanism (140) rotates is the second angle, and the difference between the absolute values ​​of the first angle and the second angle is less than or equal to ±5°.

10. An electricity meter, characterized in that, Includes the electrical components as described in any one of claims 1-9.

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