Static contact assembly and isolating switch

Abstract

The utility model relates to the technical field of electrical equipment, in particular to a static contact assembly and an isolating switch. The disconnecting switch comprises a moving contact and a static contact assembly, the static contact assembly comprises a first static contact and a second static contact, one end of the second static contact is attached to and connected with one end of the first static contact, and the other end of the second static contact and the other end of the first static contact form an opening. A clamping space communicated with the opening is formed between the second static contact and the first static contact; wherein the first static contact has a force which deforms towards the second static contact; the second static contact has a force which deforms towards the first static contact; the moving contact is configured to move relative to the static contact assembly, and the moving contact can enter and exit from the clamping space. The static contact assembly can keep a good contact effect with the moving contact.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment, in particular to a static contact assembly and an isolating switch. Background Art

[0002] In the existing static contact assembly, a single-piece flat plate structure design is usually adopted, and one contact point or contact surface is used to contact with the moving contact. The contact effect of this static contact assembly is poor, and sometimes poor contact is prone to occur. Utility Model Content

[0003] The utility model aims to provide a static contact assembly and an isolating switch, wherein the static contact assembly can maintain a good contact effect with a moving contact.

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

[0005] In a first aspect, the utility model provides a stationary contact assembly, comprising:

[0006] a first stationary contact; and

[0007] A second stationary contact, one end of the second stationary contact is fitted and connected to one end of the first stationary contact, the other end of the second stationary contact and the other end of the first stationary contact form an opening, and a clamping space connected to the opening and used to clamp the moving contact is formed between the second stationary contact and the first stationary contact; wherein,

[0008] The first stationary contact has a force that deforms toward the second stationary contact; and the second stationary contact has a force that deforms toward the first stationary contact.

[0009] In an optional embodiment, the stationary contact assembly further includes a wiring terminal, and an end of the first stationary contact away from the opening and an end of the second stationary contact away from the opening are both connected to the wiring terminal.

[0010] In an optional embodiment, the terminal includes a first wiring member and a second wiring member, the end of the first static contact away from the opening is connected to the first wiring member, the end of the second static contact away from the opening is connected to the second wiring member, and the first wiring member and the second wiring member are fitted and connected.

[0011] In an optional embodiment, the first wiring member includes a first connection portion and a first wiring portion, the first connection portion is connected to the first wiring portion at an angle, and the first connection portion is connected to the end of the first static contact away from the opening at an angle; the second wiring member includes a second connection portion and a second wiring portion, the second connection portion is connected to the second wiring portion at an angle, and the second connection portion is connected to the end of the second static contact away from the opening at an angle;

[0012] The first connecting portion is fitted with the second connecting portion, and the first wiring portion is fitted with and connected to the second wiring portion.

[0013] In an optional embodiment, the first wiring portion is provided with a plug-in column, the second wiring portion is provided with a plug-in hole, and the plug-in column is plugged into the plug-in hole; and / or,

[0014] The first wiring portion is connected to one end of the first stationary contact in the length extension direction, the second wiring portion is connected to one end of the second stationary contact in the length extension direction, and the first wiring portion and the second wiring portion are distributed on one side of the width direction of the first stationary contact.

[0015] In an optional embodiment, the first static contact includes a first static contact piece and a first elastic member, the second static contact includes a second static contact piece and a second elastic member, one end of the first static contact piece is connected to one end of the second static contact piece, the other end of the first static contact piece and the other end of the second static contact piece form an opening, and a clamping space is formed between the first static contact piece and the second static contact piece; the first elastic member is connected to a side of the first static contact piece away from the second static contact piece, and is used to apply a force to the first static contact piece to deform the second static contact piece; the second elastic member is connected to a side of the second static contact piece away from the first static contact piece, and is used to apply a force to the second static contact piece to deform the first static contact piece.

[0016] In an optional embodiment, the first stationary contact piece includes a first conductive plate, a second conductive plate and a third conductive plate connected in sequence at an angle; the first conductive plate is connected to one end of the second stationary contact piece, a clamping space is formed between the second conductive plate and the third conductive plate and the second stationary contact piece, and an opening is formed between one end of the third conductive plate away from the second conductive plate and the other end of the second stationary contact piece; the first elastic member is connected to the side of the third conductive plate facing away from the second stationary contact piece.

[0017] In an optional embodiment, the width of the clamping space is configured to be less than or equal to the thickness of the moving contact; and / or,

[0018] The opening has a first end close to the clamping space and a second end far away from the clamping space, and the width of the opening gradually decreases from the second end to the first end.

[0019] In an optional embodiment, a first guide portion is provided at the end of the first stationary contact, and a second guide portion is provided at the end of the second stationary contact, an opening is formed between the first guide portion and the second guide portion, and an angle between the first guide portion and the second guide portion is greater than 0° and less than 180°.

[0020] In a second aspect, the utility model provides an isolating switch, comprising a moving contact and a stationary contact assembly of any one of the aforementioned embodiments, wherein the moving contact is configured to be movable relative to the stationary contact assembly and the moving contact can enter and exit a clamping space.

[0021] The beneficial effects of the static contact assembly of the embodiment of the utility model include: the static contact assembly provided by the embodiment of the utility model includes a first static contact and a second static contact connected to each other, a clamping space for clamping the moving contact is provided between the first static contact and the second static contact, and the first static contact has a force to deform toward the second static contact; the second static contact has a force to deform toward the first static contact; in this way, when the moving contact is inserted into the clamping space, the first static contact with the force to deform toward the second static contact can make the moving contact abut against the second static contact, and / or the second static contact with the force to deform toward the first static contact can make the moving contact abut against the first static contact, thereby ensuring that the moving contact can have a good contact effect with at least one of the first static contact and the second static contact, and is not easily affected by interference such as vibration, thereby improving the problem of poor contact that is prone to occur in related technologies.

[0022] The isolating switch of the embodiment of the utility model includes all the beneficial effects of the aforementioned stationary contact assembly, for example, the moving contact has a good contact effect with at least one of the first stationary contact and the second stationary contact. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a partial structural schematic diagram of the isolating switch when the moving contact and the stationary contact assembly are separated in the embodiment of the utility model;

[0025] Figure 2 It is a partial structural schematic diagram of the isolating switch when the moving contact and the stationary contact assembly are connected in the embodiment of the utility model;

[0026] Figure 3 It is a structural schematic diagram of the static contact assembly in the embodiment of the utility model at a first viewing angle;

[0027] Figure 4 It is a structural schematic diagram of the static contact assembly in the embodiment of the utility model at a second viewing angle;

[0028] Figure 5 This is a schematic diagram of the structure of the first wiring member and the first stationary contact piece in the embodiment of the utility model;

[0029] Figure 6 It is a schematic structural diagram of the second wiring member and the second static contact piece in an embodiment of the utility model.

[0030] Icon: 010-isolating switch; 100-base; 200-stationary contact assembly; 210-first stationary contact; 211-first stationary contact piece; 212-first conductive plate; 213-second conductive plate; 214-third conductive plate; 215-first guide portion; 216-first elastic member; 220-second stationary contact; 221-second stationary contact piece; 222-second elastic member; 223-second guide portion; 231-clamping space; 232-opening; 240-terminal; 250-first terminal; 251-first terminal part; 252-first connecting part; 253-plug-in column; 260-second terminal; 261-second terminal part; 262-second connecting part; 263-plug-in hole; 300-moving contact assembly; 310-moving contact. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Generally, the components of the embodiments of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0032] 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 present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0034] In the description of the present utility model, it should be noted that the terms "upper", "lower", "inner", "outer", etc. indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, or the orientation or position relationship in which the utility model product is usually placed when in use, which is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0035] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] In this embodiment, unless otherwise specified, the term "first direction" refers to the direction of arrows ab in the figure, the "second direction" refers to the direction of arrows cd in the figure, and the "third direction" refers to the direction of arrows ef in the figure.

[0037] Please refer to Figure 1 and Figure 2 The present embodiment provides an isolating switch 010, which includes a base 100 and a stationary contact assembly 200, a moving contact assembly 300 and an arc extinguishing chamber (not shown) arranged on the base 100. The stationary contact assembly 200 is fixedly connected to the base 100, and the moving contact assembly 300 includes a moving contact 310, which can rotate along its rotation axis to connect with or separate from the stationary contact assembly 200. The arc extinguishing chamber is fixedly connected to the base 100 and is spaced apart from the moving contact assembly 300 and the stationary contact assembly 200. The moving contact 310 will generate an arc in a short time after being separated from the stationary contact assembly 200, and a part of the moving contact 310 movement path is located in the arc extinguishing chamber, and the arc extinguishing chamber is used to extinguish the arc.

[0038] Optionally, the moving contact assembly 300 includes two moving contacts 310, and the base 100 is provided with two stationary contact assemblies 200 and two arc extinguishing chambers corresponding to the moving contacts 310 one by one; wherein the two moving contacts 310 are centrally symmetrically arranged, and the two stationary contact assemblies 200 and the two arc extinguishing chambers are also centrally symmetrically arranged around the rotation axis of the moving contact 310. Of course, in other embodiments, the number of moving contacts 310, stationary contact assemblies 200 and arc extinguishing chambers can be increased or decreased as needed.

[0039] Please refer to Figure 3In this embodiment, the static contact assembly 200 includes a first static contact 210 and a second static contact 220, one end of the second static contact 220 is fitted and connected to one end of the first static contact 210, the other end of the second static contact 220 and the other end of the first static contact 210 form an opening 232, and a clamping space 231 connected to the opening 232 and used to clamp the moving contact 310 is formed between the second static contact 220 and the first static contact 210; wherein the first static contact 210 has a force to deform toward the second static contact 220; and the second static contact 220 has a force to deform toward the first static contact 210. In this way, when the moving contact 310 is inserted into the clamping space 231, the first static contact 210 having a force to deform toward the second static contact 220 can make the moving contact 310 abut against the second static contact 220, and / or the second static contact 220 having a force to deform toward the first static contact 210 can make the moving contact 310 abut against the first static contact 210, thereby ensuring that the moving contact 310 can have a good contact effect with at least one of the first static contact 210 and the second static contact 220, and is not easily affected by interference such as vibration, thereby improving the problem of poor contact that is prone to occur in related technologies.

[0040] It should be noted that, since the static contact assembly 200 forms a clamping space 231 for clamping the moving contact 310, the moving contact 310 can adopt a sheet-like structure so that the moving contact 310 has a thinner size, and the space swept by the moving contact 310 when rotating around its own rotation axis is smaller. Correspondingly, the space reserved for the movement of the moving contact 310 on the base 100 of the isolating switch 010 can also be set to be narrower accordingly, and the slit effect can be used to better guide the arc generated when the moving contact 310 and the static contact assembly 200 are separated to move toward the arc extinguishing chamber, thereby improving the arc extinguishing effect.

[0041] Furthermore, the width n of the clamping space 231 is configured to be smaller than the thickness of the moving contact 310 and greater than 0. In this way, the first stationary contact 210 and the second stationary contact 220 have a certain pre-pressure (pre-tightening force) relative to the moving contact 310 itself, which can better press the moving contact 310 clamped in the clamping space 231 to ensure that the contact between the moving contact 310 and the stationary contact assembly 200 is more reliable, which is conducive to ensuring the reliability of conduction between the moving contact 310 and the stationary contact assembly 200. Moreover, such a configuration can ensure that both the first stationary contact 210 and the second stationary contact 220 are in contact with the moving contact 310, ensuring at least two contact points (or surfaces), making the contact effect more guaranteed, and also conducive to meeting the needs of excessive current.

[0042] Of course, in other embodiments, the width n of the clamping space 231 can also be configured to be equal to the thickness of the moving contact 310. In this way, it can be ensured that the moving contact 310 can reliably contact at least the first stationary contact 210 or the second stationary contact 220, and the current conduction effect can also be ensured.

[0043] To ensure that the first stationary contact 210 can reliably deform toward the second stationary contact 220, and the second stationary contact 220 can reliably deform toward the first stationary contact 210, and further ensure that the moving contact 310 can be reliably clamped in the clamping space 231, good contact between the moving contact 310 and the stationary contact assembly 200 is ensured. In this embodiment, the first static contact 210 includes a first static contact piece 211 and a first elastic member 216, and the second static contact 220 includes a second static contact piece 221 and a second elastic member 222. One end of the first static contact piece 211 is connected to one end of the second static contact piece 221, and the other end of the first static contact piece 211 and the other end of the second static contact piece 221 form an opening 232, and a clamping space 231 is formed between the first static contact piece 211 and the second static contact piece 221; the first elastic member 216 is connected to the side of the first static contact piece 211 away from the second static contact piece 221, and is used to apply a force to the first static contact piece 211 to deform the second static contact piece 221; the second elastic member 222 is connected to the side of the second static contact piece 221 away from the first static contact piece 211, and is used to apply a force to the second static contact piece 221 to deform the first static contact piece 211.

[0044] It should be understood that in other embodiments, the first stationary contact 210 may only include the first stationary contact piece 211, and the first stationary contact piece 211 is made of a metal material having conductivity and a certain elasticity, so that the first stationary contact piece 211 can be deformed toward the second stationary contact piece 221 by utilizing its own elasticity. The above-mentioned metal material having conductivity and a certain elasticity includes but is not limited to beryllium bronze, tin bronze, phosphor bronze, and stainless steel sheet.

[0045] Similarly, in other embodiments, the second stationary contact 220 may only include the second stationary contact piece 221, and the second stationary contact piece 221 may be made of a conductive metal material having a certain elasticity. The elasticity of the second stationary contact piece 221 itself can be utilized to make it have a tendency to deform toward the first stationary contact piece 211.

[0046] The structures of the first stationary contact piece 211 and the second stationary contact piece 221 of this embodiment are similar, and the following description will take the first stationary contact piece 211 as an example.

[0047] The materials for making the first stationary contact piece 211 include but are not limited to copper and brass; the first stationary contact piece 211 includes a first conductive plate 212, a second conductive plate 213 and a third conductive plate 214 connected in sequence at an angle; the first conductive plate 212 is connected to one end of the second stationary contact piece 221, a clamping space 231 is formed between the second conductive plate 213 and the third conductive plate 214 and the second stationary contact piece 221, and an opening 232 is formed between one end of the third conductive plate 214 away from the second conductive plate 213 and the other end of the second stationary contact piece 221; the first elastic member 216 is connected to the side of the third conductive plate 214 away from the second stationary contact piece 221. In this way, the moving contact 310 can be reliably clamped between the third conductive plate 214 and the second stationary contact piece 221 to ensure good contact between the stationary contact assembly 200 and the moving contact 310.

[0048] Optionally, the angle between the first conductive plate 212 and the second conductive plate 213 is an obtuse angle, including but not limited to 120° and 135°, and the angle between the first conductive plate 212 and the second conductive plate 213 is away from the second stationary contact piece 221 .

[0049] Optionally, the angle between the second conductive plate 213 and the third conductive plate 214 is an obtuse angle, including but not limited to 120° and 135°, and the angle between the second conductive plate 213 and the third conductive plate 214 is toward the second stationary contact piece 221 .

[0050] In this embodiment, when the moving contact 310 is not inserted into the clamping space 231 , the third conductive plate 214 of the first stationary contact piece 211 and the third conductive plate of the second stationary contact piece 221 are spaced apart and arranged in parallel.

[0051] Of course, in other embodiments, when the movable contact 310 is not inserted into the clamping space 231 , the end of the third conductive plate 214 of the first stationary contact piece 211 away from the second conductive plate 213 is tilted toward the second stationary contact piece 221 .

[0052] The connection method between the elastic member and the third conductive plate 214 can be selected as needed; for example: sleeve connection (interference fit), connection with fasteners such as bolts, etc., which are not specifically limited here. The elastic member of this embodiment is a spring, and one end of the spring is sleeved on the positioning column connected to the side of the third conductive plate 214 away from the second static contact piece 221; of course, in other embodiments, the elastic member can also be a torsion spring, a spring, etc., which are not specifically limited here.

[0053] In order to enable the elastic member to more reliably cause the first stationary contact piece 211 to have a tendency to deform toward the second stationary contact piece 221 , one end of the elastic member away from the third conductive plate 214 may also abut against the base 100 .

[0054] In order to improve the accuracy of the movable contact 310 being inserted into the clamping space 231, that is, to ensure that the movable contact 310 can be smoothly inserted into the clamping space 231; please continue to refer to Figure 3 The opening 232 is configured as a flared structure, that is, the opening 232 has a first end close to the clamping space 231 and a second end away from the clamping space 231, and the width of the opening 232 gradually decreases from the second end to the first end.

[0055] Further, the end of the first stationary contact piece 211 is provided with a first guide portion 215, specifically, the end of the third conductive plate 214 away from the second conductive plate 213 is provided with a first guide portion 215; the end of the second stationary contact piece 221 is provided with a second guide portion 223, an opening 232 is formed between the first guide portion 215 and the second guide portion 223, and the angle α between the first guide portion 215 and the second guide portion 223 is greater than 0° and less than 180°. The first guide portion 215 and the second guide portion 223 can reliably guide the moving contact 310 into the clamping space 231, thereby ensuring the smoothness and reliability of the connection between the moving contact 310 and the stationary contact assembly 200.

[0056] The specific angle of the included angle α between the first guide portion 215 and the second guide portion 223 can be set as needed, for example: 45°, 60°, 90°, 120°, etc., which is not specifically limited here.

[0057] The first conductive portion is a chamfer (i.e., beveled edge) provided at the end of the third conductive plate 214 of the first stationary contact piece 211 , and the second conductive portion is a chamfer (i.e., beveled edge) provided at the end of the third conductive plate of the second stationary contact piece 221 .

[0058] Of course, in other embodiments, the first guide portion 215 is formed by bending the end of the third conductive plate 214 of the first static contact piece 211 in a direction away from the second static contact piece 221; the second guide portion 223 is formed by bending the end of the third conductive plate of the second static contact piece 221 in a direction away from the first static contact piece 211.

[0059] Alternatively, in other embodiments, the opening 232 may not be configured to be expanded, and the first guide portion 215 and the second guide portion 223 are parallel and spaced apart.

[0060] Optionally, see Figure 4 The third conductive plate 214 of the first stationary contact piece 211 and the third conductive plate of the second stationary contact piece 221 are spaced apart along the first direction; the direction of the opening 232 forms an angle β of 10°-60° with the second direction, so that the direction of the opening 232 is tangent to the moving path of the moving contact 310, so as to ensure that the moving contact 310 can reliably enter the clamping space 231. The first direction is perpendicular to the second direction.

[0061] Of course, in other embodiments, the angle β between the opening 232 and the second direction may also be 0°.

[0062] Please refer to Figure 3 and Figure 4 The static contact assembly 200 of this embodiment further includes a wiring terminal 240, and one end of the first static contact 210 away from the opening 232 and one end of the second static contact 220 away from the opening 232 are both connected to the wiring terminal 240; specifically, one end of the first conductive plate 212 of the first static contact piece 211 away from the second conductive plate 213 and one end of the first conductive plate of the second static contact piece 221 away from the second conductive plate are both connected to the wiring terminal 240. In this way, the first static contact 210 and the second static contact 220 can be connected through the wiring terminal 240, and there is no need to connect the first static contact 210 and the second static contact 220 additionally, which is conducive to reducing assembly processes and improving assembly efficiency.

[0063] Furthermore, the terminal 240 includes a first wiring member 250 and a second wiring member 260, and one end of the first static contact 210 away from the opening 232 is connected to the first wiring member 250, and one end of the second static contact 220 away from the opening 232 is connected to the second wiring member 260; specifically, one end of the first conductive plate 212 of the first static contact piece 211 away from the second conductive plate 213 is connected to the first wiring member 250, and one end of the first conductive plate of the second static contact piece 221 away from the second conductive plate is connected to the second wiring member 260; the first wiring member 250 is attached to and connected with the second wiring member 260. Such a configuration can ensure the stability of the connection between the first static contact 210 and the second static contact 220 through the first wiring member 250 and the second wiring member 260, and can ensure a compact structural design, which is conducive to ensuring the overall miniaturization design of the disconnector 010.

[0064] Further, please refer to Figure 4 , Figure 5 and Figure 6The first wiring member 250 includes a first connecting portion 252 and a first connecting portion 251, the first connecting portion 252 is connected to the first connecting portion 251 at an angle, and the first connecting portion 252 is connected to the end of the first static contact 210 away from the opening 232 at an angle, specifically, the first connecting portion 252 is connected to the end of the first conductive plate 212 of the first static contact piece 211 away from the second conductive plate 213 at an angle; the second wiring member 260 includes a second connecting portion 262 and a second connecting portion 261, the second connecting portion 262 is connected to the second connecting portion 261 at an angle, and the second connecting portion 262 is connected to the end of the second static contact 220 away from the opening 232 at an angle, specifically, the end of the first conductive plate of the second static contact piece 221 away from the second conductive plate is connected to the second connecting portion 262 at an angle; the first connecting portion 252 is fitted with the second connecting portion 262, and the first connecting portion 251 is fitted with and connected to the second connecting portion 261. Configuring the first wiring portion 251 and the first connecting portion 252 to be connected at an angle, and configuring the second wiring portion 261 and the second connecting portion 262 to be connected at an angle, can reduce the space occupied by the terminal 240 compared to a straight plate-shaped terminal, which is conducive to a compact structural design.

[0065] The connection method between the first connection part 252 and the first wiring part 251, the connection method between the second connection part 262 and the second wiring part 261, the connection method between the first connection part 252 and the first stationary contact piece 211, and the connection method between the second connection part 262 and the second stationary contact piece 221 all include but are not limited to integral molding and welding.

[0066] The angle between the first connection part 252 and the first wiring part 251, the angle between the second connection part 262 and the second wiring part 261, the angle between the first connection part 252 and the first conductive plate 212 of the first stationary contact piece 211, and the angle between the second connection part 262 and the first conductive plate of the second stationary contact piece 221 can all be set as needed, for example: 90°, 100°, 80°, etc., and are not specifically limited here.

[0067] Optionally, see Figure 4 The first wiring portion 251 is connected to one end of the first static contact 210 in the direction of its length extension, the second wiring portion 261 is connected to one end of the second static contact 220 in the direction of its length extension, and the first wiring portion 251 and the second wiring portion 261 are distributed on one side of the first static contact 210 in the direction of its width; specifically, the first wiring portion 251 and the second wiring portion 261 are distributed on one side of the first static contact piece 211 in the direction of its width. This arrangement can ensure a compact structural design on the one hand, and can prevent the first wiring portion 251 and the second wiring portion 261 from interfering with the movement of the moving contact 310 on the other hand, thereby ensuring that the moving contact 310 can be reliably clamped in the clamping space 231.

[0068] Further, along the third direction, the first wiring portion 251, the second wiring portion 261 and the opening 232 are oriented on the same side of the first stationary contact piece 211. Of course, in other embodiments, along the third direction, the first wiring portion 251, the second wiring portion 261 and the opening 232 are oriented on both sides of the first stationary contact piece 211.

[0069] It should be noted that the width of the first stationary contact piece 211 extends along the third direction, the length of the first stationary contact piece 211 extends along the second direction, and the thickness of the third conductive plate 214 of the first stationary contact piece 211 extends along the first direction; the first direction, the second direction and the third direction are perpendicular to each other.

[0070] The connection mode of the first wiring part 251 and the second wiring part 261 can be selected as needed; in this embodiment, the first wiring part 251 is provided with a plug-in column 253, and the second wiring part 261 is provided with a plug-in hole 263, and the plug-in column 253 is plugged into the plug-in hole 263. In this way, the stability and accuracy of the mutual connection between the first wiring part 251 and the second wiring part 261 can be ensured through the plug-in cooperation between the plug-in column 253 and the plug-in hole 263.

[0071] Of course, in order to ensure the connection stability between the first wiring portion 251 and the second wiring portion 261, the first wiring portion 251 and the second wiring portion 261 may also be welded, connected with fasteners such as bolts, etc., which is not specifically limited here.

[0072] It should be understood that in some embodiments, the first connection portion 252 and the second connection portion 262 may also be welded, or connected with fasteners such as bolts, etc., which is not specifically limited here. In other embodiments, the first conductive plate 212 of the first stationary contact piece 211 and the first conductive plate of the second stationary contact piece 221 may also be welded, or connected with fasteners such as bolts, etc., which is not specifically limited here.

[0073] Optionally, both the first wiring portion 251 and the second wiring portion 261 are provided with threaded holes, and the threaded holes provided on the two are relatively distributed, so as to facilitate wiring using the threaded holes, thereby ensuring the ease of wiring and the stability of wiring. Of course, in other embodiments, threaded holes may be provided on only one of the first wiring portion 251 and the second wiring portion 261.

[0074] The number of the plug posts 253 and the plug holes 263 can be selected as needed; in this embodiment, the first wiring portion 251 is provided with four plug posts 253, and the second wiring portion 261 is provided with four plug holes 263. The four plug posts 253 are plugged and matched with the four plug holes 263 in a one-to-one correspondence, and the four plug posts 253 are distributed at intervals around the circumference of the threaded hole provided in the first wiring portion 251. In this way, the connection stability of the first wiring portion 251 and the second wiring portion 261 can be improved.

[0075] Of course, in other embodiments, the number of the plug-in posts 253 and the plug-in holes 263 may be one, two, three, five, etc., which is not specifically limited here.

[0076] When the isolating switch 010 of this embodiment connects the moving contact 310 and the stationary contact assembly 200 , the moving contact 310 can be inserted into the clamping space 231 between the first stationary contact 210 and the second stationary contact 220 of the stationary contact assembly 200 .

[0077] In summary, the static contact assembly 200 of the present invention can be used in the isolating switch 010 , and the static contact assembly 200 can improve the problem of poor contact with the moving contact 310 , ensuring that the static contact assembly 200 can reliably conduct with the moving contact 310 .

[0078] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A stationary contact assembly, characterized in that: include: A first stationary contact (210); as well as, A second stationary contact (220), one end of the second stationary contact (220) is fitted and connected to one end of the first stationary contact (210), the other end of the second stationary contact (220) and the other end of the first stationary contact (210) form an opening (232), and a clamping space (231) is formed between the second stationary contact (220) and the first stationary contact (210), which is connected to the opening (232) and used to clamp the moving contact (310); wherein, The first stationary contact (210) has a force that deforms toward the second stationary contact (220); and the second stationary contact (220) has a force that deforms toward the first stationary contact (210).

2. The stationary contact assembly according to claim 1, characterized in that: The stationary contact assembly also includes a connecting terminal (240), and one end of the first stationary contact (210) away from the opening (232) and one end of the second stationary contact (220) away from the opening (232) are both connected to the connecting terminal (240).

3. The stationary contact assembly according to claim 2, characterized in that: The terminal (240) includes a first wiring member (250) and a second wiring member (260); an end of the first stationary contact (210) away from the opening (232) is connected to the first wiring member (250); an end of the second stationary contact (220) away from the opening (232) is connected to the second wiring member (260); the first wiring member (250) and the second wiring member (260) are fitted and connected.

4. The stationary contact assembly according to claim 3, characterized in that: The first wiring member (250) comprises a first connection portion (252) and a first connection portion (251), the first connection portion (252) is connected to the first connection portion (251) at an angle, and the first connection portion (252) is connected to an end of the first stationary contact (210) away from the opening (232) at an angle; the second wiring member (260) comprises a second connection portion (262) and a second connection portion (261), the second connection portion (262) is connected to the second connection portion (261) at an angle, and the second connection portion (262) is connected to an end of the second stationary contact (220) away from the opening (232) at an angle; The first connecting portion (252) is fitted with the second connecting portion (262), and the first wiring portion (251) is fitted with and connected to the second wiring portion (261).

5. The stationary contact assembly according to claim 4, characterized in that: The first wiring portion (251) is provided with a plug-in column (253), the second wiring portion (261) is provided with a plug-in hole (263), and the plug-in column (253) is plugged into the plug-in hole (263); and / or, The first wiring portion (251) is connected to one end of the first stationary contact (210) in the length extension direction, and the second wiring portion (261) is connected to one end of the second stationary contact (220) in the length extension direction. The first wiring portion (251) and the second wiring portion (261) are distributed on one side of the width direction of the first stationary contact (210).

6. The stationary contact assembly according to claim 1, characterized in that: The first stationary contact (210) comprises a first stationary contact piece (211) and a first elastic member (216); the second stationary contact (220) comprises a second stationary contact piece (221) and a second elastic member (222); one end of the first stationary contact piece (211) is connected to one end of the second stationary contact piece (221); the other end of the first stationary contact piece (211) and the other end of the second stationary contact piece (221) form the opening (232); and the first stationary contact piece (211) and the second stationary contact piece (221) are connected to each other. The clamping space (231) is formed; the first elastic member (216) is connected to the side of the first stationary contact piece (211) away from the second stationary contact piece (221), and is used to apply a force to the first stationary contact piece (211) to deform the second stationary contact piece (221); the second elastic member (222) is connected to the side of the second stationary contact piece (221) away from the first stationary contact piece (211), and is used to apply a force to the second stationary contact piece (221) to deform the first stationary contact piece (211).

7. The stationary contact assembly according to claim 6, characterized in that: The first stationary contact piece (211) comprises a first conductive plate (212), a second conductive plate (213) and a third conductive plate (214) which are connected in sequence at an angle; the first conductive plate (212) is connected to one end of the second stationary contact piece (221); the clamping space (231) is formed between the second conductive plate (213), the third conductive plate (214) and the second stationary contact piece (221); the opening (232) is formed between one end of the third conductive plate (214) away from the second conductive plate (213) and the other end of the second stationary contact piece (221); the first elastic member (216) is connected to a side of the third conductive plate (214) which is away from the second stationary contact piece (221).

8. The stationary contact assembly according to claim 1, characterized in that: The width of the clamping space (231) is configured to be less than or equal to the thickness of the moving contact (310); and / or, The opening (232) has a first end close to the clamping space (231) and a second end away from the clamping space (231), and the width of the opening (232) gradually decreases from the second end to the first end.

9. The stationary contact assembly according to claim 8, characterized in that: A first guide portion (215) is provided at the end of the first stationary contact (210), and a second guide portion (223) is provided at the end of the second stationary contact (220). The opening (232) is formed between the first guide portion (215) and the second guide portion (223). The included angle between the first guide portion (215) and the second guide portion (223) is greater than 0° and less than 180°.

10. An isolating switch, characterized in that: It comprises a moving contact (310) and a stationary contact assembly as claimed in any one of claims 1 to 9, wherein the moving contact (310) is configured to be movable relative to the stationary contact assembly, and the moving contact (310) can enter and exit the clamping space (231).

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