Residual-current circuit breaker with overhead circuit board

Abstract

The utility model relates to a residual-current circuit breaker with an overhead circuit board. The circuit board mainly solves the problem that most circuit boards of the existing residual-current circuit breaker are installed in parallel with front and rear covers and are inconvenient to maintain. The device is characterized by further comprising a mounting part (11) which is arranged in the shell; and the circuit board (4) is connected with the mounting part, and the circuit board is correspondingly mounted above the bracket. The utility model provides a residual-current circuit breaker with an overhead circuit board, which is arranged above a mechanism, does not shield a support and is convenient to maintain. And furthermore, when the product is switched off, the elastic piece is disconnected from the power connection piece on the circuit board, and the circuit board cannot take an electric signal of the L pole, namely, power cannot be taken during switching off, so that the safety of positive and negative connection is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of switch electric appliances, concretely relates to a leakage circuit breaker with top-mounted circuit board. BACKGROUND

[0002] Leakage protector, abbreviated as leakage switch, also called leakage circuit breaker, is mainly used for leakage fault of equipment and protection of fatal electric shock, and has overload and short circuit protection functions, and can be used for protecting overload and short circuit of line or motor, and can also be used for infrequent switching start of line under normal conditions.

[0003] The circuit board of the leakage circuit breaker is mostly installed in parallel with the front and rear covers, which is inconvenient for maintenance. UTILITY MODEL CONTENTS

[0004] In order to overcome the defects of the background art, the utility model provides a leakage circuit breaker with top-mounted circuit board, which mainly solves the problem that the circuit board of the leakage circuit breaker is mostly installed in parallel with the front and rear covers, which is inconvenient for maintenance.

[0005] The technical scheme of the utility model provides,

[0006] A leakage circuit breaker with top-mounted circuit board, comprising a shell, a tripping mechanism and a contact structure are arranged in the shell, the contact structure comprises a movable contact and a static contact arranged oppositely, the tripping mechanism comprises a bracket, the movable contact is arranged on the bracket, further comprising a mounting portion arranged in the shell, a circuit board connected with the mounting portion, the circuit board is arranged above the bracket.

[0007] The circuit board is arranged in parallel with a horizontal plane.

[0008] The mounting portion is a slot arranged on the inner wall of the shell, and the circuit board is inserted into the slot.

[0009] The shell further comprises an elastic member and a coil, the elastic member has an elastic force for maintaining electrical connection with the circuit board, one end of the elastic member is electrically connected with the coil, a pushing portion is arranged on the bracket, and the pushing portion is used for driving the elastic member to move away from the circuit board to realize electrical disconnection when the circuit breaker is in an open state.

[0010] The elastic member is a torsion spring, the torsion spring comprises a first lead, an electrical connection column is arranged on the circuit board, and the first lead is in contact with the electrical connection column.

[0011] The pushing portion is a push rod arranged on the bracket.

[0012] The shell is internally provided with at least two bosses, a clamping groove is formed between the two bosses, and the torsion spring comprises a second pin arranged in the clamping groove.

[0013] The boss is in quadrilateral cross section.

[0014] The electricity connection column is a copper pipe.

[0015] The utility model discloses a leakage circuit breaker with top-mounted circuit board, is arranged at the top of mechanism, will not shield support, is convenient for maintenance, and further, when the elastic member is disconnected with the electricity connection piece on the circuit board, the circuit board cannot get the electric signal of L pole at this time, cannot get electricity when opening, guarantees the safety of positive and negative connection. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the internal three -dimensional schematic view of first embodiment of the utility model.

[0017] Figure 2 It is Figure 1 It is the enlarged schematic view of A in the middle.

[0018] Figure 3 It is the local three -dimensional schematic view of first embodiment of the utility model. DETAILED DESCRIPTION

[0019] The utility model discloses a leakage circuit breaker with top-mounted circuit board, including shell 1, the shell is internally provided with tripping mechanism and contact structure, the contact structure includes the opposite setting movable contact 21 and static contact, the tripping mechanism includes support 31, is equipped with movable contact on the support, still include installation part 11, be located in the shell, circuit board 4, with installation part is connected, the circuit board corresponds to install in the top of support. Can set up the boss 110 in the shell, the boss and the top inner wall of shell range slot (that is installation part 11), after the circuit board is loaded, its thickness direction will be limited, then the front and back direction is limited by the front and back inner wall of shell and realizes the limit, when needing maintenance, just good to disassemble the shell, the support can directly expose, convenient maintenance.

[0020] In the embodiment, as shown in the drawing, the circuit board is arranged in parallel with the horizontal plane.

[0021] In the embodiment, as shown in the drawing, the installation part is the slot provided with the inner wall of the shell, and the circuit board is inserted into the slot. The installation is relatively convenient.

[0022] In the embodiment, as shown in the figure, the housing is further provided with an elastic member 5 and a coil 12, the elastic member has an elastic force for maintaining electrical connection with the circuit board, one end of the elastic member is electrically connected with the coil, the bracket is provided with a pushing part 311, the pushing part is used for driving the elastic member to be away from the circuit board to realize electrical disconnection when the circuit breaker is in the open state.

[0023] In the embodiment, as shown in the figure, the elastic member is a torsion spring, the torsion spring comprises a first pin 51, the circuit board is provided with an electrical connection column 41, and the first pin is in contact with the electrical connection column. The torsion spring is adopted, a mounting seat 18 is arranged on the housing, the torsion spring is sleeved on the mounting seat, one pin of the torsion spring is electrically connected with the circuit board, then a wire is connected on the torsion spring, and the wire is connected with the (L pole) coil.

[0024] In the embodiment, as shown in the figure, the pushing part is a push rod arranged on the bracket. When the bracket rotates, the pin of the torsion spring is pushed away from the electrical connection column by the push rod, and when the circuit breaker is closed, the push rod does not push the spring, and the pin is reconnected with the electrical connection column by the elastic force.

[0025] In the embodiment, as shown in the figure, the housing is provided with at least two bosses 13, a clamping groove 131 is formed between the two bosses, and the torsion spring comprises a second pin 52 arranged in the clamping groove. The second pin is fixed by the clamping groove, and the installation is relatively simple.

[0026] In the embodiment, as shown in the figure, the electrical connection column is a copper pipe. The structure is simple, and the electrical connection effect is better.

[0027] The cross section of the boss is quadrilateral.

[0028] In the description of the utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only used for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the utility model.

[0029] In addition, the terms "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" are only used for descriptive purposes and are not to be construed as indicating or implying relative importance or a specific number of the technical features indicated. Thus, the features defined with "first", "second", "third", "fourth", "fifth", "sixth", "seventh" and "eighth" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more than two, unless otherwise explicitly and specifically limited.

[0030] The embodiments described with reference to the drawings are exemplary and are intended to explain the present application, and should not be construed as limiting the present application. The embodiments should not be considered as limiting the present application, but any improvement made on the basis of the spirit of the present application should be within the scope of protection of the present application.

Claims

1. A residual current circuit breaker with a top-mounted circuit board, comprising a housing (1), wherein a tripping mechanism and a contact structure are provided inside the housing, the contact structure comprising a moving contact (21) and a stationary contact disposed opposite to each other, the tripping mechanism comprising a bracket (31) on which the moving contact is disposed, characterized in that: Also includes The mounting part (11) is provided inside the housing; The circuit board (4) is connected to the mounting part and is mounted on the top of the bracket.

2. A residual current circuit breaker with a top-mounted circuit board according to claim 1, characterized in that: The circuit board is arranged parallel to the horizontal plane.

3. A residual current circuit breaker with a top-mounted circuit board according to claim 1, characterized in that: The mounting part is a slot provided on the inner wall of the housing, and the circuit board is inserted into the slot.

4. A residual current circuit breaker with a top-mounted circuit board according to claim 1, characterized in that: The housing is also provided with an elastic element (5) and a coil (12). The elastic element has an elastic force to maintain an electrical connection with the circuit board. One end of the elastic element is electrically connected to the coil. The bracket is provided with a pushing part (311). The pushing part is used to drive the elastic element away from the circuit board to achieve electrical disconnection when the circuit breaker is in the open state.

5. A residual current circuit breaker with a top-mounted circuit board according to claim 4, characterized in that: The elastic element is a torsion spring, which includes a first pin (51). The circuit board is provided with a power contact post (41), and the first pin is in contact with the power contact post.

6. A residual current circuit breaker with a top-mounted circuit board according to claim 5, characterized in that: The pushing part is a push rod provided on the bracket.

7. A residual current circuit breaker with a top-mounted circuit board according to claim 6, characterized in that: The housing has at least two bosses (13) inside, and a clamping groove (131) is formed between the two bosses. The torsion spring includes a second pin (52) which is located in the clamping groove.

8. A residual current circuit breaker with a top-mounted circuit board according to claim 5, characterized in that: The power terminal is a copper tube.

9. A residual current circuit breaker with a top-mounted circuit board according to claim 7, characterized in that: The cross-section of the boss is quadrilateral.

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