Electromagnetic tripping module and residual current operated circuit breaker
By designing an electromagnetic tripping module, the electronic component unit and the electromagnetic relay are assembled into an integral module, which solves the problem of messy connections and long assembly time in the prior art, and realizes regular storage of the wires and shortening assembly time.
Patent Information
- Application Number
- CN202421494282.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-27
- Publication Date
- 2025-04-15
- Estimated Expiration
- 2034-06-27
AI Technical Summary
In existing residual current circuit breakers, the connection between the electronic component units and the electromagnetic relay is messy, resulting in long and unstable assembly time.
An electromagnetic tripping module is designed to assemble the electronic component unit and the electromagnetic relay into an integral module, and the positioning components and support are used to ensure a stable connection between the circuit board and the electromagnetic relay, and modular assembly is achieved through electrical connection of the wire.
The regular storage of the conductors is realized, the assembly process is simplified, the assembly time of the residual current operation circuit breaker is shortened, and the connection stability between the circuit board and the electromagnetic relay is improved.
Smart Images
Figure CN222762905U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of low-voltage electrical appliances, in particular to an electromagnetic tripping module and a residual current operated circuit breaker. Background Art
[0002] The residual current circuit breaker whose action function is independent of the power supply voltage uses the residual current to directly drive the electromagnetic relay to operate, thereby pushing the tripping mechanism of the circuit breaker to trip and disconnect the circuit. Its product structure requires a zero-sequence current transformer that senses the residual current, an electronic component unit, and an electromagnetic relay directly driven by the residual current.
[0003] The circuit board of the electronic component unit is connected to the electromagnetic relay by welding wires. Due to the long wires, the internal circuits of the circuit breaker are distributed in a disorderly manner.
[0004] Therefore, it is urgent to provide an electromagnetic tripping module and a residual current operated circuit breaker to solve the above problems. Utility Model Content
[0005] The utility model aims to provide an electromagnetic trip module and a residual current operated circuit breaker, which are not only convenient for the regular storage of wires, but also ensure the stability of the connection between the circuit board and the electromagnetic relay. The circuit board and the electromagnetic relay can be simultaneously installed in the outer protective shell of the circuit breaker as an integral module, thereby shortening the assembly time of the residual current operated circuit breaker.
[0006] In order to achieve the above objectives, the following technical solutions are provided:
[0007] Electromagnetic trip module, including:
[0008] An electromagnetic relay comprises a first protective shell, wherein a positioning assembly and a support member are provided on a mounting side of the first protective shell;
[0009] The electronic component unit includes a circuit board, which is electrically connected to the electromagnetic relay through a wire. The circuit board is placed on one side of the first protective shell and is clamped with the positioning component. The circuit board is supported by the support member to form a storage space between the circuit board and the first protective shell, and the wire is placed in the storage space.
[0010] As an optional solution for the electromagnetic trip module, the first protective shell includes a shell and a cover body that are interlocked, the positioning assembly includes a first hook and a second hook, the installation side of the shell is provided with the first hook and a plurality of the support members, and the installation side of the cover body is provided with the second hook.
[0011] As an optional solution for the electromagnetic trip module, the first hook and the second hook are diagonally distributed, the first hook is correspondingly provided with the support member, and a first clamping space is formed between the support member and the first hook, the second hook is correspondingly provided with the support member, and a second clamping space is formed between the support member and the second hook, and the circuit board is clamped in the first clamping space and the second clamping space.
[0012] As an optional solution for the electromagnetic trip module, the circuit board is provided with a first limiting notch and a second limiting notch at intervals along the diagonal line, the side wall of the first limiting notch abuts against the first hook, and the side wall of the second limiting notch abuts against the second hook.
[0013] As an optional solution of the electromagnetic trip module, the head of the first hook and / or the second hook is provided with a chamfer.
[0014] A residual current operated circuit breaker comprises an outer protective shell, an operating mechanism and an electromagnetic tripping module as described in any one of the above items, wherein the operating mechanism and the electromagnetic tripping module are both arranged in the outer protective shell.
[0015] As an optional solution for the residual current operated circuit breaker, the operating mechanism includes a second protective shell, a limiting plug is provided on one side of the second protective shell, the limiting plug extends along the first direction, and a socket is provided on the electromagnetic trip module, and the limiting plug is plugged into the socket.
[0016] As an optional solution for the residual current operated circuit breaker, the second protective shell is provided with a lubricant adding window, and the residual current operated circuit breaker also includes a partition, the partition includes a first baffle and a second baffle connected vertically, the first baffle is overlapped on the second protective shell, and the second baffle is used to cover the lubricant adding window.
[0017] As an optional solution for the residual current operated circuit breaker, the first terminal of the outer shell is provided with at least two first terminals spaced apart along the first direction, and the end of the second baffle away from the first baffle is provided with at least two third baffles spaced apart along the first direction, and the third baffle is placed between the first terminal and the operating mechanism.
[0018] As an optional solution for the residual current operated circuit breaker, one of the third baffles is provided with a first limiting step, and the side wall of the outer protective shell is provided with a second limiting step, and the first limiting step stops at the second limiting step.
[0019] Compared with the prior art, the utility model has the following beneficial effects:
[0020] The electromagnetic trip module provided by the utility model assembles the electronic component unit and the electromagnetic relay into an integral module, and there is no need to separately install the electronic component unit and the electromagnetic relay into the circuit breaker, which is convenient for the modular assembly of the residual current operated circuit breaker and shortens the time of mass production. A positioning component and a support are provided on the first protective shell of the electromagnetic relay, and the circuit board of the electronic component unit is placed on the support and the circuit board is engaged with the positioning component to ensure the connection stability between the electromagnetic relay and the electronic component unit. Since the support is located between the circuit board and the first protective shell, after the electronic component unit and the electromagnetic relay complete the wiring between the two through the wire, the excess wire can be neatly stored in the accommodation space formed between the circuit board and the first protective shell, which is convenient for the neat storage of the wire.
[0021] The residual current operated circuit breaker provided by the utility model is convenient for the regular storage of wires, and the electronic component unit and the electromagnetic relay can be simultaneously installed in the outer protective shell of the circuit breaker as an integral module, thereby shortening the assembly time of the residual current operated circuit breaker. BRIEF DESCRIPTION OF THE DRAWINGS
[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.
[0023] Figure 1 This is a schematic diagram of the assembly of the electromagnetic trip module in the embodiment of the utility model;
[0024] Figure 2 This is a schematic diagram of the structure of the electronic component unit in the embodiment of the utility model;
[0025] Figure 3 This is a schematic diagram of the structure of the first protective shell in the embodiment of the utility model;
[0026] Figure 4 This is a schematic diagram of the explosion of the first protective shell in the embodiment of the utility model;
[0027] Figure 5 It is a structural schematic diagram of a residual current operated circuit breaker in an embodiment of the utility model;
[0028] Figure 6 It is a schematic diagram of the internal structure of the residual current operated circuit breaker in the embodiment of the utility model (the upper half of the outer shell is not shown);
[0029] Figure 7It is an explosion diagram of a residual current operated circuit breaker in an embodiment of the utility model;
[0030] Figure 8 It is an exploded schematic diagram of an outer protective shell with an operating mechanism and an electromagnetic trip module installed in an embodiment of the utility model.
[0031] Reference numerals:
[0032] 100, electromagnetic release module; 200, outer protective shell; 201, first terminal; 202, second terminal; 300, operating mechanism; 301, second protective shell; 302, limit plug; 303, lubricant adding window; 304, handle; 400, partition; 401, first baffle; 402, second baffle; 403, third baffle; 4031, first limit step; 500, shielding member;
[0033] 1. Electromagnetic relay; 2. Electronic component unit;
[0034] 11. first protective shell; 111. shell; 112. cover; 113. first hook; 114. second hook; 115. support member; 116. chamfer; 117. jack; 118. first clamping space; 119. second clamping space;
[0035] 21. Circuit board; 211. First limiting notch; 212. Second limiting notch. DETAILED DESCRIPTION
[0036] 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.
[0037] In the description of the present utility model, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do 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", "third", etc. are only used to distinguish descriptions, and cannot be understood as indicating or implying relative importance. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.
[0038] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set" 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. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0039] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.
[0040] In order to facilitate the regular storage of wires and ensure the stability of the connection between the circuit board and the electromagnetic relay, the circuit board and the electromagnetic relay can be simultaneously installed in the outer shell of the circuit breaker as an integral module, thereby shortening the assembly time of the residual current operated circuit breaker. This embodiment provides an electromagnetic trip module and a residual current operated circuit breaker. Figures 1 to 8 The specific contents of this embodiment are described in detail.
[0041] like Figures 1 to 4 As shown, this embodiment provides an electromagnetic trip module 100, which includes an electromagnetic relay 1 and an electronic component unit 2. The electromagnetic relay 1 includes a first protective shell 11, and a positioning assembly and a support member 115 are provided on the installation side of the first protective shell 11. The electronic component unit 2 includes a circuit board 21, and the circuit board 21 is electrically connected to the electromagnetic relay 1 through a wire. The circuit board 21 is placed on one side of the first protective shell 11 and is clamped with the positioning assembly, and the circuit board 21 is supported by the support member 115, so that a storage space is formed between the circuit board 21 and the first protective shell 11, and the storage space is used to store the wire.
[0042] In short, the electromagnetic trip module 100 provided by the utility model assembles the electronic component unit 2 and the electromagnetic relay 1 into an integral module, and there is no need to separately install the electronic component unit 2 and the electromagnetic relay 1 into the circuit breaker, which is convenient for the modular assembly of the residual current operated circuit breaker and shortens the time of mass production. A positioning component and a support member 115 are provided on the first protective shell 11 of the electromagnetic relay 1, and the circuit board 21 of the electronic component unit 2 is placed on the support member 115 and the circuit board 21 is engaged with the positioning component to ensure the connection stability between the electromagnetic relay 1 and the electronic component unit 2. Since the support member 115 is located between the circuit board 21 and the first protective shell 11, when the electronic component unit 2 and the electromagnetic relay 1 complete the wiring between the two through the wire, the excess wire can be neatly stored in the accommodation space formed between the circuit board 21 and the first protective shell 11, which is convenient for the neat storage of the wire.
[0043] Furthermore, if Figure 3 Combination Figure 4 As shown, the first protective shell 11 includes a shell 111 and a cover 112 that are interlocked, and the positioning assembly includes a first hook 113 and a second hook 114. The installation side of the shell 111 is provided with a first hook 113 and a plurality of support members 115, and the installation side of the cover 112 is provided with a second hook 114. A receiving groove is provided in the shell 111 for placing the parts of the electromagnetic relay 1. In this embodiment, the first hook 113 and the second hook 114 can be, but not limited to, an L-shaped or L-like structure, and the circuit board 21 is installed on the first protective shell 11 by the cooperation of the first hook 113 and the second hook 114. The support member 115 is used to maintain an adaptive spacing between the circuit board 21 and the upper surface of the shell 111 to meet the placement of excess wires.
[0044] Furthermore, the first hook 113 and the second hook 114 are diagonally distributed, and the first hook 113 is provided with a support member 115 correspondingly, and a first clamping space 118 is formed between the support member 115 and the first hook 113. The second hook 114 is provided with a support member 115 correspondingly, and a second clamping space 119 is formed between the support member 115 and the second hook 114, and the circuit board 21 is clamped in the first clamping space 118 and the second clamping space 119. There is no need to install positioning components around the first protective shell 11, and only the two ends of the circuit board 21 along its own diagonal are clamped in the first clamping space 118 and the second clamping space 119 respectively, so that the electronic component unit 2 and the electromagnetic relay 1 can be stably assembled, and the circuit board 21 is prevented from moving in the Z direction. The friction between the circuit board 21 and the hook is used to prevent the circuit board 21 from moving in the X direction or the Y direction. There is no need to install positioning components around the first protective shell 11, which reduces the number of positioning components to be installed.
[0045] Optionally, the circuit board 21 is provided with a first limiting notch 211 and a second limiting notch 212 at intervals along the diagonal line, the side wall of the first limiting notch 211 abuts against the first hook 113, and the side wall of the second limiting notch 212 abuts against the second hook 114. By adding the first limiting notch 211 and the second limiting notch 212, the movement of the circuit board 21 in the X direction or the Y direction is limited by utilizing the structural interference between the circuit board 21 and the first hook 113 and the second hook 114.
[0046] Exemplarily, the head of the first hook 113 and / or the second hook 114 is provided with a chamfer 116. In this embodiment, the head of the second hook 114 is provided with a chamfer 116. In the process of clamping the circuit board 21 with the first protective shell 11, one end of the circuit board 21 is first obliquely clamped into the first clamping space 118, and then the other end of the circuit board 21 is brought into contact with the chamfer 116 and the circuit board 21 is pressed downward, so that the second hook 114 is elastically deformed, and then the other end of the circuit board 21 is clamped into the second clamping space 119.
[0047] like Figures 5 to 8 As shown, the present embodiment further provides a residual current operated circuit breaker, which comprises an outer protective shell 200, an operating mechanism 300 and the electromagnetic tripping module 100 mentioned above, wherein the operating mechanism 300 and the electromagnetic tripping module 100 are both arranged in the outer protective shell 200. Among them, after the electronic component unit 2 and the electromagnetic relay 1 complete the wiring between the two through the wires, the excess wires can be neatly stored in the accommodation space formed between the circuit board 21 and the first protective shell 11, which is convenient for the neat storage of the wires, and the electronic component unit 2 and the electromagnetic relay 1 can be simultaneously loaded into the outer protective shell of the circuit breaker as an integral module, thereby shortening the assembly time of the residual current operated circuit breaker. It should be noted that the first direction mentioned in this embodiment is Figure 8 The X direction in .
[0048] Furthermore, if Figure 7 and Figure 8As shown, the operating mechanism 300 includes a second protective shell 301, a limiting plug 302 is provided on one side of the second protective shell 301, the limiting plug 302 extends along the first direction, and a plug hole 117 is provided on the electromagnetic tripping module 100, and the limiting plug 302 is plugged into the plug hole 117. The assembly of the electromagnetic tripping module 100 and the operating mechanism 300 is achieved by plugging. Exemplarily, at least two plug holes 117 are provided on the side wall surface of the first protective shell 11, and at least two limiting plugs 302 are provided on the side wall of the second protective shell 301. The at least two plug holes 117 are arranged in a one-to-one correspondence with the at least two limiting plugs 302. By increasing the number of limiting plugs 302 and the plug hole 117, not only the assembly stability of the electromagnetic tripping module 100 and the operating mechanism 300 is improved, but also the electromagnetic tripping module 100 is prevented from rotating relative to the operating mechanism 300.
[0049] Furthermore, if Figure 7 Combination Figure 8 As shown, the second protective shell 301 is provided with a lubricant window 303, and the residual current operated circuit breaker also includes a partition 400, which includes a first baffle 401 and a second baffle 402 connected vertically, and the first baffle 401 is overlapped on the second protective shell 301, so that the partition 400 can be hung on the second protective shell 301. The second baffle 402 is directly opposite to the lubricant window 303, and the second baffle 402 is used to cover the lubricant window 303. White lubricant is added to the handle 304 of the operating mechanism 300 and the lock. Since the handle 304 of the operating mechanism 300 is rotated, it is easy to cause the lubricant to splash through the lubricant window 303 to the inner surface of the outer protective shell 200. By adding a partition 400, the splash of the lubricant can be blocked, and the lubricant splashes on the partition 400, so as to protect the cleanliness of the surface of the outer protective shell 200. Exemplarily, the partition 400 is made of insulating cardboard.
[0050] Furthermore, at least two first terminals 201 are provided at intervals along the first direction at the first terminal of the outer shell 200, at least two second terminals 202 are provided at intervals along the first direction at the second terminal of the outer shell 200, at least two third terminals 403 are provided at intervals along the first direction at one end of the second baffle 402 away from the first baffle 401, and the third baffle 403 is inserted into the outer shell 200 and used to shield the first terminals 201. By adding the third baffle 403, electric short circuit between the first terminals 201 and components inside the circuit breaker can be avoided.
[0051] Further, one of the third baffles 403 is provided with a first limiting step 4031, and the side wall of the outer protective shell 200 is provided with a second limiting step, and the first limiting step 4031 is stopped at the second limiting step. By adding the second limiting step, the position of the partition 400 in the outer protective shell 200 is limited to prevent the partition 400 from moving in the first direction.
[0052] Furthermore, the residual current operated circuit breaker further comprises a shielding member 500, which is covered on the electromagnetic trip module 100. The shielding member 500 and the first protective shell 11 of the electromagnetic relay 1 of the electromagnetic trip module 100 are interference fit, and the shielding member 500 can effectively prevent the electromagnetic relay 1 from being affected by the working environment magnetic field and the load starting current.
[0053] Note that the above are only preferred embodiments of the present invention and the technical principles used. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described here, and that various obvious changes, readjustments and substitutions can be made by those skilled in the art without departing from the scope of protection of the present invention. Therefore, although the present invention is described in more detail through the above embodiments, the present invention is not limited to the above embodiments, and may include more other equivalent embodiments without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims
1. Electromagnetic trip module, characterized in that: include: An electromagnetic relay (1) comprises a first protective shell (11), wherein a positioning assembly and a support member (115) are provided on the installation side of the first protective shell (11); The electronic component unit (2) comprises a circuit board (21), wherein the circuit board (21) is electrically connected to the electromagnetic relay (1) via a wire, the circuit board (21) is placed on one side of the first protective shell (11) and is engaged with the positioning component, and the circuit board (21) is supported by the support member (115), so that a receiving space is formed between the circuit board (21) and the first protective shell (11), and the wire is placed in the receiving space.
2. The electromagnetic trip module according to claim 1, characterized in that: The first protective shell (11) comprises a shell body (111) and a cover body (112) that are interlocked, the positioning assembly comprises a first hook (113) and a second hook (114), the installation side of the shell body (111) is provided with the first hook (113) and a plurality of support members (115), and the installation side of the cover body (112) is provided with the second hook (114).
3. The electromagnetic trip module according to claim 2, characterized in that: The first hook (113) and the second hook (114) are distributed diagonally; the first hook (113) is provided with the support member (115) correspondingly, and a first clamping space (118) is formed between the support member (115) and the first hook (113); the second hook (114) is provided with the support member (115) correspondingly, and a second clamping space (119) is formed between the support member (115) and the second hook (114); the circuit board (21) is clamped in the first clamping space (118) and the second clamping space (119).
4. The electromagnetic trip module according to claim 3, characterized in that: The circuit board (21) is provided with a first limiting notch (211) and a second limiting notch (212) at intervals along a diagonal line, the side wall of the first limiting notch (211) abuts against the first hook (113), and the side wall of the second limiting notch (212) abuts against the second hook (114).
5. The electromagnetic trip module according to any one of claims 2 to 4, characterized in that: The head of the first hook (113) and / or the second hook (114) is provided with a chamfer (116).
6. Residual current operated circuit breaker, characterized in that: It comprises an outer protective shell (200), an operating mechanism (300) and an electromagnetic tripping module (100) according to any one of claims 1 to 5, wherein the operating mechanism (300) and the electromagnetic tripping module (100) are both arranged in the outer protective shell (200).
7. The residual current operated circuit breaker according to claim 6, characterized in that: The operating mechanism (300) comprises a second protective shell (301), a limiting plug post (302) is provided on one side of the second protective shell (301), the limiting plug post (302) extends along a first direction, a plug hole (117) is provided on the electromagnetic trip module (100), and the limiting plug post (302) is plugged into the plug hole (117).
8. The residual current operated circuit breaker according to claim 7, characterized in that: The second protective shell (301) is provided with a lubricant adding window (303), and the residual current operated circuit breaker further comprises a partition (400), wherein the partition (400) comprises a first baffle (401) and a second baffle (402) vertically connected, wherein the first baffle (401) is overlapped on the second protective shell (301), and the second baffle (402) blocks the lubricant adding window (303).
9. The residual current operated circuit breaker according to claim 8, characterized in that: At least two first connecting posts (201) are arranged at intervals along a first direction at a first connecting end of the outer protective shell (200); at least two third connecting posts (403) are arranged at intervals along the first direction at an end of the second baffle (402) away from the first baffle (401); and the third baffle (403) is placed between the first connecting post (201) and the operating mechanism.
10. The residual current operated circuit breaker according to claim 9, characterized in that: One of the third baffles (403) is provided with a first limiting step (4031), and the side wall of the outer protective shell (200) is provided with a second limiting step, and the first limiting step (4031) is stopped at the second limiting step.