Electrical accessory installation assembly and circuit breaker

Abstract

The utility model belongs to the technical field of low-voltage electric appliances, and discloses an electrical accessory installation assembly and a circuit breaker. The mounting assembly comprises a mounting plate, a pressing plate, an electrical accessory detachably arranged between the pressing plate and the mounting plate and a quick release mechanism, the quick release mechanism comprises a locking piece and a connecting piece, the connecting piece is connected to the mounting plate, the locking piece is movably connected to the connecting piece, at least part of the locking piece is located on the side, opposite to the mounting plate, of the pressing plate, and the locking piece has a locking position and an unlocking position; one of the locking piece and the connecting piece is provided with a locking column, the other one of the locking piece and the connecting piece is provided with a locking hole, and the locking hole comprises an unlocking hole section and a locking hole section which are communicated and are in sliding fit with the locking column; when the locking piece is located at the locking position, the locking column is located at the locking hole section, and the pressing plate is pressed on the electrical accessory by the locking piece; when the locking piece is located at the unlocking position, the locking column is located at the unlocking hole section, and the locking piece is separated from the pressing plate. The locking piece is driven to move relative to the connecting piece, so that the electrical accessory can be fixed and unlocked, and quick disassembly and assembly in a limited operation space can be realized.

Description

Technical Field

[0001] This utility model relates to the field of low-voltage electrical technology, and in particular to an electrical accessory installation assembly and a circuit breaker. Background Technology

[0002] The electrical accessories of a universal circuit breaker include shunt trip units and closing electromagnets. The shunt trip unit is used to open the circuit breaker, and the closing electromagnet is used to close the circuit breaker. When the circuit breaker needs to be opened or closed, the corresponding electrical accessories perform an action to trigger the closing or opening trigger of the operating mechanism, causing the operating mechanism to perform the opening or closing action.

[0003] In existing technologies, such as Figure 1 and Figure 2 As shown, the shunt trip unit and the closing electromagnet are installed on the operating mechanism cover plate 10' of the circuit breaker body. A clamping plate 20' is provided above it. An installation shaft 30' is provided between the clamping plate 20' and the operating mechanism cover plate 10'. The installation shaft 30' is located between the shunt trip unit and the closing electromagnet, and its lower end is connected to the operating mechanism cover plate 10'. A screw 40' passes through the clamping plate 20' from above and is threaded to the installation shaft 30', thereby pressing the clamping plate 20' onto the shunt trip unit and the closing electromagnet, thus realizing the installation and fixation of these two electrical accessories.

[0004] The existing technology has the following drawbacks: electrical accessories need to be replaced when they are damaged. When disassembling and assembling electrical accessories, tools such as screwdrivers are required to tighten the 40' screws. Moreover, the operating space at the installation location of electrical accessories is limited, making it extremely inconvenient to tighten the 40' screws. The process of disassembling and assembling electrical accessories is complex and difficult.

[0005] Therefore, there is an urgent need for an electrical accessory installation assembly and circuit breaker to solve the above-mentioned problems in the prior art. Utility Model Content

[0006] The purpose of this utility model is to provide an electrical accessory installation assembly and circuit breaker that, while ensuring the stable installation of electrical accessories, reduces the difficulty of disassembling and installing electrical accessories, and enables rapid disassembly and assembly within a limited operating space.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] In a first aspect, an electrical accessory mounting assembly is provided, comprising:

[0009] Mounting plate;

[0010] Pressure plate;

[0011] Electrical accessories are detachably disposed between the pressure plate and the mounting plate;

[0012] The quick-release mechanism includes a locking member and a connecting member. The connecting member is connected to the mounting plate, and the locking member is movably connected to the connecting member and is at least partially located on the side of the pressure plate facing away from the mounting plate. The locking member has a locked position and an unlocked position. One of the locking member and the connecting member is provided with a locking pin, and the other is provided with a locking hole. The locking hole includes an unlocking hole section and a locking hole section that are connected and slide in cooperation with the locking pin.

[0013] When the locking member is in the locked position, the locking pin is located in the locking hole section, and the locking member presses the pressure plate against the electrical accessory;

[0014] When the locking member is in the unlocked position, the locking pin is located in the unlocking hole section, and the locking member is separated from the pressure plate.

[0015] As an optional solution to the electrical accessory installation assembly provided by this utility model, the locking member is rotatable and movable along its own rotation axis to the connecting member;

[0016] The unlocking hole section extends along the moving direction of the locking member, and the locking hole section extends along the rotating direction of the locking member.

[0017] As an optional solution for the electrical accessory installation assembly provided by this utility model, the locking member includes a locking shaft, the connecting member includes a mounting cylinder, and the locking shaft passes through the mounting cylinder; a locking pin is provided on one of the locking shaft and the mounting cylinder, and a locking hole is provided on the other of the locking shaft and the mounting cylinder;

[0018] or,

[0019] The locking member includes a locking sleeve, the connecting member includes a mounting shaft, the locking sleeve is sleeved on the mounting shaft, one of the locking sleeve and the mounting shaft is provided with the locking pin, and the other of the locking sleeve and the mounting shaft is provided with the locking hole.

[0020] As an optional solution to the electrical accessory mounting assembly provided by this utility model, the locking member further includes:

[0021] A pressing part is connected to the locking shaft or the locking sleeve, and the pressing part can be detachably pressed against the pressure plate; at least one operating protrusion is provided on the outer periphery of the pressing part.

[0022] As an optional solution to the electrical accessory installation assembly provided by this utility model, the quick-release mechanism further includes:

[0023] An elastic element, the first end of which abuts against the locking element, and the second end of which abuts against the connecting element; the locking element is used to move to the unlocked position under the elastic force of the elastic element.

[0024] As an optional solution for the electrical accessory installation assembly provided by this utility model, the locking hole section includes a first sidewall and a second sidewall disposed opposite to each other. A limiting protrusion is provided on the first sidewall and / or the second sidewall. The locking pin slides and engages with the limiting protrusion. When the locking member is in the locking position, the limiting protrusion stops between the locking pin and the unlocking hole section.

[0025] As an optional solution for the electrical accessory installation assembly provided by this utility model, one of the locking member and the connecting member is provided with a first threaded hole, the first end of the locking pin is screwed into the first threaded hole, and the end face of the second end of the locking pin is provided with a slot, which is configured to engage a tool for screwing the locking pin.

[0026] As an optional solution for the electrical accessory installation assembly provided by this utility model, the connector is located between the pressure plate and the mounting plate, and the locking member can movably pass through the pressure plate to connect with the connector;

[0027] And / or, at least two electrical accessories are provided, the pressure plate presses against at least two adjacent electrical accessories, and the connector is located between two adjacent electrical accessories;

[0028] And / or, one of the connector and the mounting plate is provided with a stud, and the other is provided with a second threaded hole, the stud being screwed into the second threaded hole; or, the quick-release mechanism further includes a fastener, the fastener passing through the mounting plate and threadedly connected to the connector.

[0029] As an optional solution for the electrical accessory installation assembly provided by this utility model, one of the electrical accessory and the mounting plate is provided with a first positioning protrusion, and the other is provided with a first positioning hole, wherein the first positioning protrusion is inserted into the first positioning hole;

[0030] And / or, one of the pressure plate and the electrical accessory is provided with a second positioning protrusion, and the other is provided with a second positioning hole, wherein the second positioning protrusion is inserted into the second positioning hole;

[0031] And / or, the pressure plate includes a flange structure disposed on the edge of the pressure plate body, the pressure plate body has a pressing area, the locking member is pressed against the pressing area, and the flange structure extends along the pressing area and the distribution direction of the electrical accessory.

[0032] As an optional solution for the electrical accessory installation assembly provided by this utility model, the flange structure is bent toward the mounting plate relative to the pressure plate body and is located on one side of the electrical accessory. The flange structure is provided with a notch, and the electrical accessory is provided with a protruding structure, which is located within the notch.

[0033] In a second aspect, a circuit breaker is provided, including a circuit breaker body and an electrical accessory mounting assembly as described above, wherein the mounting plate of the electrical accessory mounting assembly is fixed to the circuit breaker body.

[0034] The beneficial effects of this utility model are:

[0035] This utility model provides an electrical accessory mounting assembly and a circuit breaker including the electrical accessory mounting assembly. A quick-release mechanism enables the fixed installation and removal of electrical accessories. The locking member relative to the connecting member can move between a locked position and an unlocked position. By providing a locking pin and a locking hole that slides with the locking pin, when fixing the electrical accessory, the locking member is driven to the locked position relative to the connecting member, allowing the locking pin to enter the locked position from the unlocked position. At this time, the locking member presses the pressure plate onto the electrical accessory, securing it firmly between the pressure plate and the mounting plate. When it is necessary to remove the electrical accessory, the locking member is driven to the unlocked position relative to the connecting member, allowing the locking pin to enter the unlocked position from the locked position. At this time, the locking member separates from the pressure plate and no longer presses against it, thus allowing the electrical accessory to be removed from between the pressure plate and the mounting plate, enabling replacement of the electrical accessory. By setting up this quick-release mechanism, the electrical accessories can be locked and unlocked simply by moving the locking part relative to the connecting part. This ensures that the electrical accessories are installed securely while reducing the difficulty of disassembling and installing them, enabling quick assembly and disassembly within a limited operating space. Attached Figure Description

[0036] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the drawings without creative effort.

[0037] Figure 1 This is a first view of the electrical accessory mounting assembly provided by the prior art on the circuit breaker body;

[0038] Figure 2 This is a second view of the electrical accessory mounting assembly provided by the prior art on the circuit breaker body;

[0039] Figure 3 This is a first isometric view of the electrical accessory mounting assembly provided in a specific embodiment of this utility model;

[0040] Figure 4 This is a second isometric view of the electrical accessory mounting assembly provided in a specific embodiment of this utility model;

[0041] Figure 5 yes Figure 4 A magnified view of a section at point A in the middle;

[0042] Figure 6 This is an exploded view of the quick-release mechanism provided in a specific embodiment of this utility model;

[0043] Figure 7 This is a cross-sectional view of the quick-release mechanism provided in a specific embodiment of this utility model;

[0044] Figure 8 This is an exploded view of the electrical accessory installation assembly provided in a specific embodiment of this utility model;

[0045] Figure 9 This is a third isometric view of the electrical accessory mounting assembly provided in a specific embodiment of this utility model;

[0046] Figure 10 yes Figure 3 A magnified view of a section at point B in the middle;

[0047] Figure 11 This is a schematic diagram of the installation of the electrical accessory mounting assembly provided in a specific embodiment of the present invention on the circuit breaker body.

[0048] Figure 1 and Figure 2 middle:

[0049] 10′, Operating mechanism cover plate; 20′, Pressure plate; 30′, Mounting shaft; 40′, Screw.

[0050] Figures 3 to 11 middle:

[0051] 1. Mounting plate; 2. Pressure plate; 3. Electrical accessories; 4. Quick-release mechanism;

[0052] 11. Second threaded hole; 12. First positioning hole; 13. Through hole;

[0053] 21. Pressure plate body; 22. Flanged structure;

[0054] 211. Second positioning hole; 212. Through hole;

[0055] 221. Gap;

[0056] 31. First positioning protrusion; 32. Second positioning protrusion; 33. Protrusion structure;

[0057] 41. Locking component; 42. Connecting component; 43. Locking pin; 44. Lock hole; 45. Elastic component;

[0058] 411. Locking shaft; 412. Clamping part; 4111. First threaded hole;

[0059] 4121. Operating protrusion; 4122. Indicator structure;

[0060] 421. Mounting sleeve; 422. Connecting post; 423. Stud;

[0061] 431. Card slot;

[0062] 441. Unlocking hole section; 442. Locking hole section;

[0063] 4421, First sidewall; 4422, Second sidewall; 4420, Limiting protrusion;

[0064] 100. Circuit breaker body. Detailed Implementation

[0065] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0066] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0067] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0068] In the description of this embodiment, the terms "upper," "lower," "left," and "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0069] In this embodiment, the term "and / or" is merely a description of the relationship between associated objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, in this invention, the character " / " generally indicates that the preceding and following associated objects have an "or" relationship.

[0070] In the embodiments of this utility model, the same reference numerals denote the same parts, and for the sake of brevity, detailed descriptions of the same parts are omitted in different embodiments.

[0071] Example 1

[0072] like Figure 3 and Figure 4 As shown, this embodiment provides an electrical accessory mounting assembly, including a mounting plate 1, a pressure plate 2, an electrical accessory 3, and a quick-release mechanism 4. At least one electrical accessory 3 is provided. This electrical accessory mounting assembly ensures the electrical accessory 3 is securely installed while reducing the difficulty of disassembling and installing the electrical accessory 3, enabling rapid assembly and disassembly within a limited operating space.

[0073] Specifically, such as Figure 3 , Figure 4 as well as Figure 5 As shown, the electrical accessory 3 is detachably disposed between the pressure plate 2 and the mounting plate 1. The quick-release mechanism 4 includes a locking member 41 and a connecting member 42. The connecting member 42 is connected to the mounting plate 1, and the locking member 41 is movably connected to the connecting member 42 and is at least partially located on the side of the pressure plate 2 facing away from the mounting plate 1. The locking member 41 has a locked position and an unlocked position. One of the locking member 41 and the connecting member 42 is provided with a locking pin 43, and the other is provided with a locking hole 44. The locking hole 44 includes an unlocking hole section 441 and a locking hole section 442 that are connected and slide in cooperation with the locking pin 43. When the locking member 41 is in the locked position, the locking pin 43 is located in the locking hole section 442, and the locking member 41 presses the pressure plate 2 against the electrical accessory 3. When the locking member 41 is in the unlocked position, the locking pin 43 is located in the unlocking hole section 441, and the locking member 41 is separated from the pressure plate 2.

[0074] The electrical accessory installation assembly provided in this embodiment enables the fixed installation and removal of the electrical accessory 3 via the quick-release mechanism 4. The locking member 41 can move between the locked and unlocked positions relative to the connecting member 42. By providing a locking pin 43 and a locking hole 44 that slides with the locking pin 43, when the electrical accessory 3 is fixed, the locking member 41 is driven to move relative to the connecting member 42 towards the locked position, allowing the locking pin 43 to enter the locking hole section 442 from the unlocking hole section 441. At this time, the locking member 41 presses the pressure plate 2 onto the electrical accessory 3, ensuring the electrical accessory 3 is securely fixed between the pressure plate 2 and the mounting plate 1. When it is necessary to remove the electrical accessory 3, the locking member 41 is driven to move relative to the connecting member 42 towards the unlocked position, allowing the locking pin 43 to enter the unlocking hole section 441 from the locking hole section 442. At this time, the locking member 41 separates from the pressure plate 2 and no longer presses against it, thus allowing the electrical accessory 3 to be removed from between the pressure plate 2 and the mounting plate 1, enabling the replacement of the electrical accessory 3 and other related processes. By setting up the quick-release mechanism 4, the electrical accessory 3 can be locked and unlocked simply by driving the locking part 41 to move relative to the connecting part 42. While ensuring the electrical accessory 3 is installed firmly, it can reduce the difficulty of disassembling and installing the electrical accessory 3, and achieve quick disassembly and assembly in a limited operating space.

[0075] In this embodiment, the locking member 41 is rotatably and movably connected to the connecting member 42 along its own axis of rotation. The unlocking hole section 441 extends along the moving direction of the locking member 41, and the locking hole section 442 extends along the rotating direction of the locking member 41. When the pressure plate 2 is pressed, the locking member 41 is first driven to move relative to the connecting member 42 so that the locking pin 43 slides into the unlocking hole section 441. After reaching the junction of the unlocking hole section 441 and the locking hole section 442, the locking member 41 is driven to rotate relative to the connecting member 42 so that the locking pin 43 slides into the locking hole section 442 until the locking member 41 rotates to the locked position. That is, the locking member 41 only needs to move and rotate relative to the connecting member 42 to achieve the switching between the locked and unlocked positions.

[0076] Specifically Figure 4 In the center position, the pressure plate 2 is spaced above the mounting plate 1. The locking member 41 can move vertically relative to the connecting member 42, that is, the unlocking hole section 441 extends vertically, and the locking hole section 442 extends in the horizontal plane along the rotation direction of the locking member 41. The extension direction of the locking hole section 442 is perpendicular to the extension direction of the unlocking hole section 441.

[0077] Specifically, when the locking member 41 is in the locked position, the locking pin 43 abuts against the inner wall of the end of the locking hole section 442 away from the unlocking hole section 441; when the locking member 41 is in the unlocked position, the locking pin 43 abuts against the inner wall of the end of the unlocking hole section 441 away from the locking hole section 442.

[0078] In this embodiment, see Figure 6 and Figure 7 The locking member 41 includes a locking shaft 411, and the connecting member 42 includes a mounting cylinder 421. The locking shaft 411 passes through the mounting cylinder 421 and can move axially relative to the mounting cylinder 421 and rotate within the mounting cylinder 421. The locking shaft 411 is provided with the aforementioned locking pin 43, and the cylinder wall of the mounting cylinder 421 has the aforementioned locking hole 44. The locking pin 43 always passes through the locking hole 44. Preferably, the locking pin 43 extends a certain distance out of the locking hole 44, which makes it easier to observe the locking pin 43 visually and ensures that the locking pin 43 will not disengage from the locking hole 44. When the locking member 41 moves from the unlocked position to the locked position, the locking shaft 411 moves downward and then rotates within the mounting cylinder 421, during which time it drives the locking pin 43 to slide sequentially along the unlocking hole section 441 and the locking hole section 442 until it reaches the inner wall of the locking hole section 442 that is away from the unlocking hole section 441.

[0079] The engagement between the locking shaft 411 and the mounting cylinder 421 guides and limits the movement and rotation of the locking shaft 411, making its movement more stable. Setting the locking pin 43 on the locking shaft 411 is a relatively simple and easy-to-implement method.

[0080] See Figure 3 and Figure 4 In some embodiments, the connector 42 is located between the pressure plate 2 and the mounting plate 1. The orthographic projection of the pressure plate 2 onto the plane of the mounting plate 1 is defined as the projection area of ​​the pressure plate 2, and the orthographic projection of the connector 42 onto the plane of the mounting plate 1 is completely covered by the projection area of ​​the pressure plate 2. The locking shaft 411 of the locking member 41 can movably penetrate the pressure plate 2 to connect with the connector 42, which improves the connection stability between the quick-release mechanism 4 and the pressure plate 2, while also resulting in a more reasonable and compact structural layout. Figure 8 The pressure plate 2 is provided with a through hole 212, through which the locking shaft 411 passes and extends into the mounting sleeve 421 of the connector 42.

[0081] In some other embodiments, the connector 42 may also be located on one side of the pressure plate 2 along the horizontal direction. In this case, the orthographic projection of the connector 42 on the plane where the mounting plate 1 is located is outside the projection area of ​​the pressure plate 2. The locking member 41 connected to the upper end of the connector 42 extends in the direction of the pressure plate 2 to press against the side of the pressure plate 2 facing away from the mounting plate 1.

[0082] Furthermore, at least two electrical accessories 3 are provided, and the pressure plate 2 presses against at least two adjacent electrical accessories 3. The connector 42 is located between two adjacent electrical accessories 3. When the locking member 41 presses against the pressure plate 2, the pressure plate 2 can be located on both sides of the locking member 41 to press against two adjacent electrical accessories 3 respectively. That is, at least two electrical accessories 3 can be fixed by a quick release mechanism 4.

[0083] Specifically Figure 3Two electrical accessories 3 are provided between the mounting plate 1 and the pressure plate 2. The pressure plate 2 extends along the arrangement direction of the two electrical accessories 3, and each end of the pressure plate 2 presses against an electrical accessory 3, so that the pressure plate 2 is subjected to more even force.

[0084] In this embodiment, the two electrical accessories 3 include a shunt trip unit and a closing electromagnet, which are used to realize the opening and closing of the circuit breaker, respectively.

[0085] See Figure 6 and Figure 7 The locking member 41 also includes a pressing part 412, which is connected to the locking shaft 411 and located on the side of the pressure plate 2 facing away from the mounting plate 1, for separably pressing against the pressure plate 2. When the locking member 41 is in the locked position, the pressing part 412 presses against the pressure plate 2, and since the pressure plate 2 is between the pressing part 412 and the top surface of the mounting cylinder 421 of the connecting member 42, the mounting cylinder 421 can stop and limit the pressure plate 2, preventing the pressure plate 2 from undergoing large bending deformation in the direction of the mounting plate 1.

[0086] By rotating the clamping part 412 along the plane of the pressure plate 2, the locking pin 43 can rotate out of the locking hole section 442 and into the unlocking hole section 441, thus separating the clamping part 412 from the pressure plate 2. Furthermore, combined with... Figure 4 and Figure 5 At least one operating protrusion 4121 is provided on the outer periphery of the clamping part 412. The provision of the operating protrusion 4121 makes it more convenient to operate when screwing the clamping part 412. For example, the clamping part 412 is in the shape of a flat cylinder, and an operating protrusion 4121 is provided on each of its opposite sides, which facilitates the operator to rotate the clamping part 412. At the same time, the operating protrusion 4121 can press against the pressure plate 2, increase the pressing area of ​​the entire locking member 41 against the pressure plate 2, avoid stress concentration, and improve the clamping stability.

[0087] More specifically, an indicator structure 4122 is provided on the side of the clamping part 412 facing away from the pressure plate 2; the indicator structure 4122 is used to indicate the rotation direction of the locking member 41. Exemplarily, the indicator structure 4122 includes an arrow and symbols corresponding to the locked and unlocked positions. The symbols are, for example, the text symbols "open" and "closed," located on either side of the arrow. When the clamping part 412 is driven to rotate in the "open" direction, the locking member 41 will move to the unlocked position to disassemble the electrical accessory 3. Conversely, when the clamping part 412 is driven to rotate in the "closed" direction, the locking member 41 will move to the locked position to fix the electrical accessory 3.

[0088] See Figure 6 and Figure 7The quick-release mechanism 4 also includes an elastic element 45, which is installed inside the mounting cylinder 421. One end of the mounting cylinder 421 is open, and the other end is closed. The first end of the elastic element 45 abuts against the bottom surface of the locking shaft 411 of the locking member 41, and the second end of the elastic element 45 abuts against the inner bottom wall of the mounting cylinder 421 of the connecting member 42. The locking member 41 is used to move to the unlocking position under the elastic force of the elastic element 45, reducing the difficulty of unlocking. When the locking member 41 moves to the locked position, the locking shaft 411 compresses the elastic element 45, so that the elastic element 45 is in a compressed and energy-storing state. When the locking pin 43 slides out of the locking hole section 442 driven by the locking shaft 411, the locking pin 43 is no longer restricted by the inner wall of the locking hole section 442. At this time, the elastic element 45 releases potential energy, driving the locking member 41 to move the locking pin 43 along the unlocking hole section 441 until the unlocking position.

[0089] For example, the elastic element 45 is a spring that always extends and retracts within the mounting cylinder 421.

[0090] See Figure 5 and Figure 6 The locking hole section 442 includes a first sidewall 4421 and a second sidewall 4422 disposed opposite to each other. A limiting protrusion 4420 is provided on the first sidewall 4421 and / or the second sidewall 4422. The locking pin 43 slides in contact with the limiting protrusion 4420. When the locking member 41 is in the locked position, the limiting protrusion 4420 stops between the locking pin 43 and the unlocking hole section 441. By setting the limiting protrusion 4420, the locking pin 43 in the locked position can be prevented from moving towards the unlocking hole section 441, so that the locking pin 43 is kept at one end of the locking hole section 442, preventing it from sliding out of the locking hole section 442 due to vibration, impact or other factors. This allows the locking member 41 to be stably in the locked position, increasing the fixing firmness of the electrical accessory 3.

[0091] For example, in this embodiment, the first sidewall 4421 is located above the second sidewall 4422, and the aforementioned limiting protrusion 4420 protrudes from the first sidewall 4421. Under the elastic force of the elastic member 45, the locking pin 43 abuts against the first sidewall 4421. Therefore, the limiting protrusion 4420 protruding from the first sidewall 4421 can more effectively prevent the locking pin 43 from disengaging from the locking hole section 442.

[0092] See Figure 6 The locking member 41 has a first threaded hole 4111 on its locking shaft 411. The first end of the locking pin 43 is screwed into the first threaded hole 4111. The end face of the second end of the locking pin 43 is provided with a groove 431. The groove 431 is configured to engage a tool for screwing the locking pin 43, so that the locking pin 43 can be easily and quickly screwed into the first threaded hole 4111 under the screwing action of the tool, thereby improving the assembly speed.

[0093] See Figure 7 and Figure 8 In some embodiments, one of the connector 42 and the mounting plate 1 is provided with a stud 423, and the other is provided with a second threaded hole 11. The stud 423 is screwed into the second threaded hole 11 to achieve a fixed connection between one end of the connector 42 and the mounting plate 1, which is stable and easy to operate.

[0094] Specifically, the connector 42 also includes a connecting post 422. The first end of the connecting post 422 is connected to the mounting cylinder 421, and the other end has a protruding stud 423. The bottom surface of the connecting post 422 can abut against the surface of the mounting plate 1, achieving accurate positioning of the connector 42 on the mounting plate 1. When manufacturing the connector 42, a mounting hole can be opened at the first end of a cylindrical shaft to form the mounting cylinder 421, and the stud 423 can be formed at the other end through circumferential cutting and threading.

[0095] In other embodiments, the quick-release mechanism 4 further includes a fastener that penetrates the mounting plate 1 and is threadedly connected to the connector 42, thus achieving a stable connection between the connector 42 and the mounting plate 1. In this case, the connector 42 only includes a connecting post 422 and a mounting sleeve 421. An exemplary fastener is a screw.

[0096] See Figure 8 , Figure 9 as well as Figure 10 One of the electrical accessory 3 and the mounting plate 1 is provided with a first positioning protrusion 31, and the other is provided with a first positioning hole 12. The first positioning protrusion 31 is inserted into the first positioning hole 12 to realize the positioning connection between the electrical accessory 3 and the mounting plate 1 and prevent the two from moving relative to each other in the horizontal direction.

[0097] Furthermore, one of the pressure plate 2 and the electrical accessory 3 is provided with a second positioning protrusion 32, and the other is provided with a second positioning hole 211. The second positioning protrusion 32 is inserted into the second positioning hole 211 to realize the positioning connection between the electrical accessory 3 and the pressure plate 2, and to prevent the two from moving relative to each other in the horizontal direction.

[0098] In this embodiment, one end of the electrical accessory 3 is provided with two spaced first positioning protrusions 31, and the other end is provided with three second positioning protrusions 32 arranged in a triangular pattern. Correspondingly, two first positioning holes 12 are provided on the mounting plate 1 for each electrical accessory 3, and three second positioning holes 211 arranged in a triangular pattern are provided on the pressure plate 2 for each electrical accessory 3. This effectively improves the fixing firmness of the electrical accessory 3 between the pressure plate 2 and the mounting plate 1, and prevents the electrical accessory 3 from shaking back and forth and left and right between the pressure plate 2 and the mounting plate 1.

[0099] See Figure 3 and Figure 8The pressure plate 2 includes a pressure plate body 21 and a flange structure 22 disposed on the edge of the pressure plate body 21. The pressure plate body 21 has a pressing area, and the locking member 41 is pressed into the pressing area. The flange structure 22 extends along the pressing area and the distribution direction of the electrical accessory 3. When the locking member 41 presses the pressure plate 2, the suspended area of ​​the pressure plate 2 is subjected to force, which will cause it to tend to bend and deform toward the mounting plate 1. By setting the flange structure 22 on the edge of the pressure plate body 21, the overall strength and rigidity of the pressure plate 2 can be increased, which can effectively resist the bending deformation of the pressure plate body 21, ensure that the pressure plate body 21 can firmly press the electrical accessory 3, and improve the installation stability and firmness of the electrical accessory 3.

[0100] In this embodiment, the length direction of the pressure plate body 21 is the distribution direction of the two electrical accessories 3, and a flange structure 22 is provided along its length direction.

[0101] Further, see Figure 10 The flanged structure 22 bends relative to the pressure plate body 21 toward the mounting plate 1 and is located on one side of the electrical accessory 3, saving space in the height direction. A notch 221 is provided on the flanged structure 22, and a protruding structure 33 is provided on the electrical accessory 3, with the protruding structure 33 located within the notch 221. The notch 221 serves two purposes: firstly, it avoids the protruding structure 33, preventing interference between the electrical accessory 3 and the pressure plate 2; secondly, it limits the relative movement between the pressure plate 2 and the electrical accessory 3 to a certain extent. In this embodiment, the protruding structure 33 is a wire harness fixing part, used to fix the lead wires drawn from the electrical accessory 3. The notch 221 is simply made at the corresponding position on the flanged structure 22 according to the location of the wire harness fixing part on the electrical accessory 3. For example, the wire harness fixing part is L-shaped like a hook, forming a binding cavity between it and the outer wall of the electrical accessory 3. A cable tie binds the lead wire to the wire harness fixing part, and the cable tie is located within the binding cavity to prevent movement of the cable tie.

[0102] In other embodiments, the flange structure 22 may also be folded away from the mounting plate 1. In this configuration, the flange structure 22 will not interfere with any structure on the electrical accessory 3, eliminating the need for a notch 221 and thus not weakening the strength of the flange structure 22.

[0103] like Figure 11 As shown, this embodiment also provides a circuit breaker, including a circuit breaker body 100 and an electrical accessory mounting assembly as described above. The mounting plate 1 of the electrical accessory mounting assembly is fixed to the circuit breaker body 100. Specifically, the mounting plate 1 is the cover plate of the circuit breaker's operating mechanism. The circuit breaker's operating mechanism includes a closing trigger and a opening trigger. Two electrical accessories 3 are provided, namely a shunt trip unit and a closing electromagnet. See also... Figure 9The mounting plate 1 has a through hole 13 corresponding to both the shunt trip unit and the closing electromagnet. The actuating part of the shunt trip unit triggers the tripping trigger part of the operating mechanism through the corresponding through hole 13, thereby tripping the circuit breaker. The actuating part of the closing electromagnet triggers the closing trigger part of the operating mechanism through the corresponding through hole 13, thereby closing the circuit breaker. The beneficial effects of the circuit breaker with the above-mentioned electrical accessory mounting assembly are as described above.

[0104] Example 2

[0105] Based on the same inventive concept as Embodiment 1, this embodiment provides an electrical accessory installation assembly, whose quick-release mechanism 4 differs from that of Embodiment 1.

[0106] Specifically, in this embodiment, the locking member 41 includes a locking shaft 411, and the connecting member 42 includes a mounting cylinder 421. The locking shaft 411 passes through the mounting cylinder 421 and is axially movable relative to the mounting cylinder 421 and rotatable within the mounting cylinder 421. The locking shaft 411 is provided with a locking hole 44, and the cylinder wall of the mounting cylinder 421 is provided with a locking pin 43. When the locking member 41 moves, the locking hole 44 moves and rotates relative to the locking pin 43, which can also realize the locking and unlocking of the locking member 41.

[0107] At this time, a first threaded hole 4111 can be provided on the wall of the mounting cylinder 421, and the locking pin 43 passes through and is screwed into the first threaded hole 4111, and protrudes relative to the inner wall of the mounting cylinder 421 so as to slide and cooperate with the locking hole 44 on the locking shaft 411 inside the mounting cylinder 421.

[0108] Example 3

[0109] Based on the same inventive concept as Embodiment 1, this embodiment provides an electrical accessory installation assembly, whose quick-release mechanism 4 differs from that of Embodiment 1 and Embodiment 2.

[0110] Specifically, in this embodiment, the locking member 41 includes a locking sleeve, and the connecting member 42 includes a mounting shaft. The locking sleeve is fitted onto the mounting shaft and is movable along the axial direction of the mounting shaft, and is rotatable relative to the mounting shaft. A locking pin 43 is provided on the locking sleeve, and the locking pin 43 protrudes relative to the inner wall of the locking sleeve. A locking hole 44 is recessed on the outer wall of the mounting shaft. When the locking member 41 moves, it drives the locking pin 43 to slide along the unlocking hole section 441 and the locking hole section 442, which can also realize the switching between the locked position and the unlocked position.

[0111] At this time, the clamping part 412 of the locking member 41 is connected to one end of the lock sleeve to clamp the pressure plate 2. A first threaded hole 4111 can be provided through the lock sleeve to install the locking pin 43.

[0112] Example 4

[0113] Based on the same inventive concept as Embodiment 1, this embodiment provides an electrical accessory installation assembly, whose quick-release mechanism 4 differs from that of Embodiments 1, 2, and 3.

[0114] Specifically, in this embodiment, the locking member 41 includes a locking sleeve, and the connecting member 42 includes a mounting shaft. The locking sleeve is fitted onto the mounting shaft and is movable along the axial direction of the mounting shaft, and is rotatable relative to the mounting shaft. The locking sleeve is provided with a locking hole 44, and the mounting shaft is provided with a locking pin 43. When the locking member 41 moves, the locking hole 44 on the locking sleeve moves relative to the locking pin 43, thus enabling switching between the locked and unlocked positions. At this time, the unlocking hole section 441 of the locking hole 44 is connected below the locking hole section 442.

[0115] Furthermore, the clamping part 412 is connected to one end of the locking sleeve for clamping the pressure plate 2. A first threaded hole 4111 can be opened on the outer wall of the mounting shaft to install the locking pin 43.

[0116] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An electrical accessory mounting assembly, characterized in that, include: Mounting plate (1); Pressure plate (2); Electrical accessory (3) is detachably disposed between the pressure plate (2) and the mounting plate (1); The quick-release mechanism (4) includes a locking member (41) and a connecting member (42). The connecting member (42) is connected to the mounting plate (1). The locking member (41) is movably connected to the connecting member (42) and is at least partially located on the side of the pressure plate (2) facing away from the mounting plate (1). The locking member (41) has a locked position and an unlocked position. One of the locking member (41) and the connecting member (42) is provided with a locking pin (43), and the other is provided with a lock hole (44). The lock hole (44) includes an unlocking hole section (441) and a locking hole section (442) that are connected and slide with the locking pin (43). When the locking member (41) is in the locked position, the locking pin (43) is located in the locking hole section (442), and the locking member (41) presses the pressure plate (2) against the electrical accessory (3); When the locking member (41) is in the unlocked position, the locking pin (43) is located in the unlocking hole section (441), and the locking member (41) is separated from the pressure plate (2).

2. The electrical accessory mounting assembly according to claim 1, characterized in that, The locking member (41) is rotatably and movable along its own axis of rotation to the connecting member (42); The unlocking hole section (441) extends along the moving direction of the locking member (41), and the locking hole section (442) extends along the rotating direction of the locking member (41).

3. The electrical accessory mounting assembly according to claim 2, characterized in that, The locking member (41) includes a locking shaft (411), and the connecting member (42) includes a mounting cylinder (421). The locking shaft (411) passes through the mounting cylinder (421). The locking pin (43) is provided on one of the locking shaft (411) and the mounting cylinder (421), and the locking hole (44) is provided on the other of the locking shaft (411) and the mounting cylinder (421). or, The locking member (41) includes a locking sleeve, the connecting member (42) includes a mounting shaft, the locking sleeve is sleeved on the mounting shaft, the locking pin (43) is provided on one of the locking sleeve and the mounting shaft, and the locking hole (44) is provided on the other of the locking sleeve and the mounting shaft.

4. The electrical accessory mounting assembly according to claim 3, characterized in that, The locking element (41) also includes: A pressing part (412) is connected to the locking shaft (411) or the locking sleeve. The pressing part (412) can be detachably pressed against the pressure plate (2). At least one operating protrusion (4121) is provided on the outer periphery of the pressing part (412).

5. The electrical accessory mounting assembly according to claim 1, characterized in that, The quick-release mechanism (4) also includes: An elastic element (45) is provided, with its first end abutting against the locking element (41) and its second end abutting against the connecting element (42). The locking element (41) is used to move to the unlocked position under the elastic force of the elastic element (45).

6. The electrical accessory mounting assembly according to claim 1, characterized in that, The locking hole section (442) includes a first sidewall (4421) and a second sidewall (4422) disposed opposite to each other. A limiting protrusion (4420) is provided on the first sidewall (4421) and / or the second sidewall (4422). The locking pin (43) slides and contacts the limiting protrusion (4420). When the locking member (41) is in the locked position, the limiting protrusion (4420) stops between the locking pin (43) and the unlocking hole section (441).

7. The electrical accessory mounting assembly according to claim 1, characterized in that, One of the locking member (41) and the connecting member (42) is provided with a first threaded hole (4111), the first end of the locking pin (43) is screwed into the first threaded hole (4111), and the end face of the second end of the locking pin (43) is provided with a slot (431), which is configured to engage a tool for screwing the locking pin (43).

8. The electrical accessory mounting assembly according to any one of claims 1-7, characterized in that, The connector (42) is located between the pressure plate (2) and the mounting plate (1), and the locking member (41) is movably inserted through the pressure plate (2) to be connected to the connector (42); And / or, at least two electrical accessories (3) are provided, the pressure plate (2) presses against at least two adjacent electrical accessories (3), and the connector (42) is located between two adjacent electrical accessories (3); And / or, one of the connector (42) and the mounting plate (1) is provided with a stud (423), and the other is provided with a second threaded hole (11), the stud (423) being screwed into the second threaded hole (11); or, the quick-release mechanism (4) further includes a fastener, the fastener passing through the mounting plate (1) and threadedly connected to the connector (42).

9. The electrical accessory mounting assembly according to any one of claims 1-7, characterized in that, One of the electrical accessory (3) and the mounting plate (1) is provided with a first positioning protrusion (31), and the other is provided with a first positioning hole (12), wherein the first positioning protrusion (31) is inserted into the first positioning hole (12); And / or, one of the pressure plate (2) and the electrical accessory (3) is provided with a second positioning protrusion (32), and the other is provided with a second positioning hole (211), wherein the second positioning protrusion (32) is inserted into the second positioning hole (211); And / or, the pressure plate (2) includes a pressure plate body (21) and a flange structure (22) disposed on the edge of the pressure plate body (21), the pressure plate body (21) having a pressing area, the locking member (41) pressing against the pressing area, and the flange structure (22) extending along the pressing area and the distribution direction of the electrical accessory (3).

10. The electrical accessory mounting assembly according to claim 9, characterized in that, The flange structure (22) bends toward the mounting plate (1) relative to the pressure plate body (21) and is located on one side of the electrical accessory (3). The flange structure (22) has a notch (221) and the electrical accessory (3) has a protrusion structure (33) located inside the notch (221).

11. A circuit breaker, characterized in that, It includes a circuit breaker body (100) and an electrical accessory mounting assembly as claimed in any one of claims 1-10, wherein the mounting plate (1) of the electrical accessory mounting assembly is fixed to the circuit breaker body (100).

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