Static contact assembly and isolating switch
By designing the structure of the clamping member and the static contact piece in the static contact assembly, the deformation trend of the clamping member ensures the clamping of the movable contact, the problem of poor contact effect of the existing static contact assembly is solved and a more reliable contact effect is achieved.
Patent Information
- Application Number
- CN202421649680.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-11
- Publication Date
- 2025-05-13
- Estimated Expiration
- 2034-07-11
AI Technical Summary
The contact effect of existing static contact components is poor and it is prone to poor contact.
A static contact assembly is designed, including a static contact piece and a clamping member, one end of the clamping member is attached and connected to the static contact piece, and the other end forms an open opening with the static contact piece. There is a clamping space for clamping the movable contact between the clamping member and the static contact piece, and the clamping member has a tendency to deform to the static contact piece.
Through the deformation trend of the clamping member and the static contact piece, the movable contact is ensured to be reliably clamped in the clamping space, which improves the contact effect between the static contact assembly and the movable contact, and reduces the poor contact problems caused by vibration and other reasons.
Smart Images
Figure CN222867461U_ABST
Abstract
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] Stationary contact piece; and,
[0007] A clamping piece, one end of the clamping piece is attached to and connected to the static contact piece, the other end of the clamping piece and the other end of the static contact piece form an opening, and there is a clamping space between the clamping piece and the static contact piece that is connected to the opening and is used to clamp the moving contact; the clamping piece has a tendency to deform toward the static contact piece, or the static contact piece has a tendency to deform toward the clamping piece.
[0008] In an optional embodiment, the stationary contact assembly further includes a wiring terminal connected to an end of the stationary contact piece away from the opening.
[0009] In an optional embodiment, the connecting terminal includes a connecting portion and a connecting portion connected at an angle, and the connecting portion is connected to the stationary contact piece at an angle.
[0010] In an optional embodiment, one end of the stationary contact piece in the length extension direction is connected to the connecting portion; and the wiring portion is distributed on one side of the stationary contact piece in the width direction.
[0011] In an optional embodiment, the clamping member includes a conductive member, which 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 stationary contact piece, a clamping space is provided between the second conductive plate and the third conductive plate and the 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 stationary contact piece; wherein at least one of the second conductive plate and the third conductive plate is configured to have a tendency to deform toward the stationary contact piece.
[0012] In an optional embodiment, the clamping member includes a conductive member and an elastic member, one end of the conductive member is connected to the stationary contact piece, the other end of the conductive member and the other end of the stationary contact piece form an opening, and a clamping space is provided between the conductive member and the stationary contact piece; the elastic member is connected to the side of the conductive member facing away from the stationary contact piece, and the elastic member is used to apply a force to the conductive member to deform toward the stationary contact piece.
[0013] In an optional embodiment, the width of the clamping space is configured to be smaller than or equal to the thickness of the moving contact.
[0014] In an optional embodiment, the opening has a first end close to the clamping space and a second end away from the clamping space, and the width of the opening gradually decreases from the second end to the first end.
[0015] In an optional embodiment, a first guide portion is provided at the end of the stationary contact piece, and a second guide portion is provided at the end of the clamping member, 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°.
[0016] 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.
[0017] 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 static contact piece and a clamping piece connected thereto, a clamping space for clamping the moving contact is provided between the static contact piece and the clamping piece, and the clamping piece has a tendency to deform toward the static contact piece, or the static contact piece has a tendency to deform toward the clamping piece; in this way, when the moving contact is inserted into the clamping space, the force of deformation of one of the clamping piece and the static contact piece toward the other can cause the moving contact to be pressed against at least one of the clamping piece and the static contact piece, thereby ensuring that the moving contact has a good contact effect with at least one of the static contact piece and the clamping piece, is not easily affected by interference such as vibration, and improves the problem of poor contact that is prone to occur in related technologies.
[0018] 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 stationary contact piece and the clamping member. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] 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.
[0020] 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;
[0021] 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;
[0022] 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;
[0023] 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;
[0024] Figure 5 It is a schematic structural diagram of the static contact assembly in the embodiment of the utility model at a third viewing angle.
[0025] Icons: 010-isolating switch; 100-base; 200-stationary contact assembly; 210-stationary contact piece; 211-first guide portion; 212-first extension portion; 220-clamping member; 231-clamping space; 232-exposure; 240-connecting terminal; 241-connecting portion; 242-connecting portion; 250-conductive member; 251-first conductive plate; 252-second conductive plate; 253-third conductive plate; 254-second guide portion; 260-elastic member; 300-moving contact assembly; 310-moving contact. DETAILED DESCRIPTION
[0026] 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.
[0027] 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.
[0028] 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.
[0029] 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.
[0030] 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.
[0031] 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.
[0032] Please refer to Figure 1 and Figure 2The 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.
[0033] 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.
[0034] Please refer to Figure 3 In this embodiment, the stationary contact assembly 200 includes a stationary contact piece 210 and a clamping member 220. One end of the clamping member 220 is attached to and connected to the stationary contact piece 210, and the other end of the clamping member 220 and the other end of the stationary contact piece 210 form an opening 232. There is a clamping space 231 between the clamping member 220 and the stationary contact piece 210, which is connected to the opening 232 and is used to clamp the moving contact 310; the clamping member 220 has a tendency to deform toward the stationary contact piece 210. In this way, when the moving contact 310 is connected to the static contact assembly 200, the moving contact 310 is clamped between the static contact sheet 210 and the clamping member 220, and the tendency of the clamping member 220 to deform toward the static contact sheet 210 can enable the moving contact 310 to be reliably clamped between the clamping member 220 and the static contact sheet 210, that is, it can ensure that the static contact assembly 200 and the moving contact 310 are in good contact and are not easily disturbed by vibration, etc., thereby improving the problem of poor contact that is prone to occur in related technologies.
[0035] 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.
[0036] It should be understood that in other embodiments, the clamping member 220 and the static contact piece 210 are configured such that the static contact piece 210 has a tendency to deform toward the clamping member 220; in this way, when the moving contact 310 and the static contact assembly 200 are connected, the moving contact 310 is clamped between the static contact piece 210 and the clamping member 220, and the tendency of the static contact piece 210 to deform toward the clamping member 220 can also enable the moving contact 310 to be reliably clamped between the clamping member 220 and the static contact piece 210, that is, it can ensure that the static contact assembly 200 and the moving contact 310 are in good contact and are not easily disturbed by vibration, etc., thereby improving the problem of poor contact that is prone to occur in related technologies.
[0037] 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 static contact piece 210 and the clamping piece 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 static contact assembly 200 is more reliable, which is conducive to ensuring the reliability of conduction between the moving contact 310 and the static contact assembly 200. Moreover, such a configuration can ensure that both the static contact piece 210 and the clamping piece 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.
[0038] 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 stationary contact piece 210 or the clamping member 220, and the current conduction effect can also be ensured.
[0039] The clamping member 220 of the present embodiment includes a conductive member 250, and the manufacturing material of the conductive member 250 includes but is not limited to copper, beryllium bronze, tin bronze, phosphor bronze, and stainless steel; the shape of the conductive member 250 can be set as needed. Exemplarily, the conductive member 250 includes a first conductive plate 251, a second conductive plate 252, and a third conductive plate 253 connected in sequence at an angle, the first conductive plate 251 is attached to and connected to one end of the stationary contact piece 210, and a clamping space 231 is provided between the second conductive plate 252 and the third conductive plate 253 and the stationary contact piece 210, and an opening 232 is formed between the end of the third conductive plate 253 away from the second conductive plate 252 and the other end of the stationary contact piece 210; wherein, at least one of the second conductive plate 252 and the third conductive plate 253 is configured to have a tendency to deform toward the stationary contact piece 210. Such an arrangement enables the moving contact 310 to be reliably clamped between the third conductive plate 253 and the stationary contact sheet 210 , so as to ensure good contact between the stationary contact assembly 200 and the moving contact 310 .
[0040] The connection method of the conductive member 250 and the stationary contact piece 210 can be selected as needed; in this embodiment, the first conductive plate 251 is connected to the stationary contact piece 210 by rivets. Of course, in other embodiments, the first conductive plate 251 can also be welded to the stationary contact piece 210, etc., which is not specifically limited here.
[0041] Optionally, the angle between the first conductive plate 251 and the second conductive plate 252 is an obtuse angle, including but not limited to 120° and 135°, and the angle between the first conductive plate 251 and the second conductive plate 252 is away from the stationary contact plate 210 .
[0042] Optionally, the angle between the second conductive plate 252 and the third conductive plate 253 is an obtuse angle, including but not limited to 120° and 135°, and the angle between the second conductive plate 252 and the third conductive plate 253 is toward the stationary contact piece 210 .
[0043] In this embodiment, when the moving contact 310 is not inserted into the clamping space 231 , the third conductive plate 253 and the stationary contact piece 210 are spaced apart and arranged in parallel.
[0044] Of course, in other embodiments, when the moving contact 310 is not inserted into the clamping space 231 , the end of the third conductive plate 253 away from the second conductive plate 252 is tilted toward the direction close to the stationary contact piece 210 .
[0045] The clamping member 220 of this embodiment further includes an elastic member 260, which is connected to the side of the third conductive plate 253 away from the stationary contact piece 210, and the elastic member 260 is used to apply a force to the third conductive plate 253 to deform toward the stationary contact piece 210. In this way, the stability and reliability of the movable contact 310 clamped between the conductive member 250 and the stationary contact piece 210 can be ensured, thereby ensuring good contact between the movable contact 310 and the stationary contact assembly 200.
[0046] It should be understood that in other embodiments, the clamping member 220 may not include the elastic member 260, and the conductive member 250 may be made of a metal material having conductivity and a certain elasticity, so that the conductive member 250 can be deformed toward the stationary contact sheet 210 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.
[0047] In an embodiment where the stationary contact piece 210 is configured to have a tendency to deform toward the clamping piece 220, the stationary contact piece 210 can be configured to be elastic itself, or an elastic element can be provided on the side of the stationary contact piece 210 facing away from the clamping piece 220, so as to provide the stationary contact piece 210 with an elastic force to deform toward the clamping piece 220 through the elastic element.
[0048] The connection method of the elastic member 260 and the third conductive plate 253 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 260 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 253 away from the static contact piece 210; of course, in other embodiments, the elastic member 260 can also be a torsion spring, a spring, etc., which are not specifically limited here.
[0049] In order to enable the elastic member 260 to more reliably cause the conductive member 250 to have a tendency to deform toward the stationary contact piece 210 , one end of the elastic member 260 away from the third conductive plate 253 may also abut against the base 100 .
[0050] 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 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.
[0051] Furthermore, a first guide portion 211 is provided at the end of the stationary contact piece 210, and a second guide portion 254 is provided at the end of the clamping member 220. An opening 232 is formed between the first guide portion 211 and the second guide portion 254, and an angle α between the first guide portion 211 and the second guide portion 254 is greater than 0° and less than 180°. The first guide portion 211 and the second guide portion 254 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.
[0052] The specific angle of the included angle α between the first guide portion 211 and the second guide portion 254 can be set as needed, for example: 45°, 60°, 90°, 120°, etc., which is not specifically limited here.
[0053] The first conductive portion is a chamfer (i.e., beveled edge) provided at the end of the stationary contact piece 210 , and the second guide portion 254 is formed by bending one end of the third conductive plate 253 of the conductive member 250 away from the second conductive plate 252 in a direction away from the stationary contact piece 210 .
[0054] Of course, in other embodiments, the first guide portion 211 is formed by bending the end of the stationary contact piece 210 away from the conductive member 250; the second conductive portion is a chamfer (i.e., a bevel cut) set at one end of the third conductive plate 253 away from the second conductive plate 252.
[0055] Alternatively, in other embodiments, the opening 232 may not be configured to be expanded, and the first guide portion 211 and the second guide portion 254 are parallel and spaced apart.
[0056] Optionally, see Figure 4 The stationary contact piece 210 and the third conductive plate 253 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.
[0057] Of course, in other embodiments, the angle β between the opening 232 and the second direction may also be 0°.
[0058] Optionally, see Figure 4 The end of the stationary contact piece 210 close to the first guide part 211 has a first extension part 212 protruding in the third direction, and the end of the third conductive plate 253 close to the second conductive part has a second extension part protruding in the third direction (not shown in the figure), and the third direction, the first direction and the second direction are perpendicular to each other. The first extension part 212 and the second extension part are respectively located on one side of the stationary contact piece 210 and the third conductive plate 253 in the third direction (such as Figure 4 The opening 232 is oriented toward the other side of the static contact piece 210 and the third conductive plate 253 in the third direction (eg, Figure 4 The first extension portion 212 and the second extension portion are spaced apart and opposite to each other in the first direction, and are used to clamp the moving contact 310 together. By providing the first extension portion 212 and the second extension portion, the clamping surface of the stationary contact sheet 210 and the third conductive plate 253 is increased, so that the moving contact 310 can be clamped more stably after entering the clamping space 231 through the opening 232.
[0059] Of course, in other embodiments, the first extension portion 212 and the second extension portion may not be provided.
[0060] Please refer to Figure 4 and Figure 5 The static contact assembly 200 of this embodiment further includes a terminal 240, which is connected to an end of the static contact piece 210 away from the opening 232. The connection methods of the terminal 240 and the static contact piece 210 include but are not limited to integral molding, welding, and connection with fasteners such as bolts.
[0061] Furthermore, the connection terminal 240 includes a connection portion 241 and a connection portion 242 connected at an angle, and the connection portion 242 is connected at an angle to the stationary contact piece 210. The connection portion 241 and the connection portion 242 are configured to be connected at an angle, which can reduce the space occupied by the connection terminal 240 compared to a straight plate-shaped connection terminal, and is conducive to a compact structural design.
[0062] Furthermore, one end of the static contact piece 210 in the length extension direction is connected to the connecting portion 242; the wiring portion 241 is distributed on one side of the static contact piece 210 in the width direction, that is, the wiring portion 241 is distributed on one side of the static contact piece 210 along the third direction; the length extension direction of the static contact piece 210 is the second direction. Such a configuration can ensure a compact structural design on the one hand, and can prevent the wiring portion 241 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.
[0063] Optionally, along the third direction, the first extension portion 212 and the connection portion 241 are respectively distributed on both sides of the stationary contact piece 210. Of course, in other embodiments, along the third direction, the first extension portion 212 and the connection portion 241 can also be distributed on the same side of the stationary contact piece 210.
[0064] In this embodiment, the angle between the wiring portion 241 and the connecting portion 242, and the angle between the connecting portion 242 and the stationary contact piece 210 are all 90°. Of course, in other implementations, the angle between the wiring portion 241 and the connecting portion 242, and the angle between the connecting portion 242 and the stationary contact piece 210 can also be 100°, 80°, etc., which are not specifically limited here.
[0065] Optionally, the wiring portion 241 is provided with a threaded hole, so as to facilitate wiring through the threaded hole, thereby ensuring easy wiring operation and wiring stability.
[0066] 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 stationary contact piece 210 of the stationary contact assembly 200 and the elastic guide member.
[0067] 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 .
[0068] 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: Stationary contact piece (210); as well as, A clamping member (220), one end of the clamping member (220) is attached to and connected to the stationary contact piece (210), the other end of the clamping member (220) and the other end of the stationary contact piece (210) form an opening (232), and a clamping space (231) is provided between the clamping member (220) and the stationary contact piece (210), the clamping space being connected to the opening (232) and used for clamping a moving contact (310); the clamping member (220) has a tendency to deform toward the stationary contact piece (210), or the stationary contact piece (210) has a tendency to deform toward the clamping member (220).
2. The stationary contact assembly according to claim 1, characterized in that: The stationary contact assembly further comprises a connection terminal (240), wherein the connection terminal (240) is connected to an end of the stationary contact piece (210) away from the opening (232).
3. The stationary contact assembly according to claim 2, characterized in that: The connecting terminal (240) comprises a connecting portion (241) and a connecting portion (242) connected at an angle, and the connecting portion (242) is connected to the stationary contact piece (210) at an angle.
4. The stationary contact assembly according to claim 3, characterized in that: One end of the stationary contact piece (210) in the length extension direction is connected to the connecting portion (242); and the wiring portion (241) is distributed on one side of the stationary contact piece (210) in the width direction.
5. The stationary contact assembly according to claim 1, characterized in that: The clamping member (220) comprises a conductive member (250), wherein the conductive member (250) comprises a first conductive plate (251), a second conductive plate (252) and a third conductive plate (253) which are connected in sequence at an angle, wherein the first conductive plate (251) is connected to one end of the stationary contact piece (210), the second conductive plate (252) and the third conductive plate (253) have the clamping space (231) between them and the stationary contact piece (210), and the opening (232) is formed between one end of the third conductive plate (253) away from the second conductive plate (252) and the other end of the stationary contact piece (210); wherein at least one of the second conductive plate (252) and the third conductive plate (253) is configured to have a tendency to deform toward the stationary contact piece (210).
6. The stationary contact assembly according to claim 1, characterized in that: The clamping member (220) comprises a conductive member (250) and an elastic member (260); one end of the conductive member (250) is connected to the stationary contact piece (210); the other end of the conductive member (250) and the other end of the stationary contact piece (210) form the opening (232); and the conductive member (250) and the stationary contact piece (210) have the clamping space (231) between them; the elastic member (260) is connected to a side of the conductive member (250) facing away from the stationary contact piece (210); the elastic member (260) is used to apply a force to the conductive member (250) to deform the stationary contact piece (210).
7. The stationary contact assembly according to claim 1, characterized in that: The width of the clamping space (231) is configured to be smaller than or equal to the thickness of the moving contact (310).
8. The stationary contact assembly according to claim 1, characterized in that: 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: The end of the stationary contact piece (210) is provided with a first guide portion (211), and the end of the clamping member (220) is provided with a second guide portion (254), the opening (232) is formed between the first guide portion (211) and the second guide portion (254), and the included angle between the first guide portion (211) and the second guide portion (254) 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).