CN219591336U - Circuit breaker - Google Patents

Abstract

The utility model discloses a circuit breaker, which comprises a circuit breaker body, a circuit breaker control circuit board and a circuit breaker control circuit board, wherein the circuit breaker body comprises a circuit breaker shell, a wiring terminal and a control circuit board; the wiring terminals are distributed on two side surfaces of the circuit breaker shell; the protective cover is arranged beside the wiring terminal of the circuit breaker body, and the inner side of the protective cover is fastened or clamped and fixed with the shell of the circuit breaker body through screws; the power taking piece comprises a fixing part which is clamped with the inner side of the shield and a power taking part which extends towards the direction deviating from the shield, and the power taking part is used for being abutted on the wiring terminal and used for taking power; the electricity taking sheet further comprises a wire electrically connected with the control circuit board. The circuit breaker provided by the utility model can realize the technical effects of external power taking structure and the like.

Description

Circuit breaker

Technical Field

The utility model relates to the technical field of low-voltage electricity, in particular to a circuit breaker.

Background

Along with the gradual improvement of people's life, the requirement on electricity is also higher and higher, and each manufacturer is in order to satisfy consumer's demand, promotes intelligent circuit breaker gradually. The intelligent circuit breaker often comprises a control pole with a control circuit board and an operating mechanism and a circuit breaker body, wherein the control circuit board samples electric signals from the circuit breaker body through some electricity taking structures and comprises power supply sampling, voltage parameter sampling, current parameter sampling and the like so as to realize protection and monitoring of the circuit breaker. Just as in chinese patent CN206893566U, the above structure is disclosed, and the electricity taking structure in this patent is designed inside the product, but for small circuit breakers, the components inside the circuit breaker are already very compact, and the electricity taking structure is not ideal to be arranged inside the product, so how to design a circuit breaker capable of realizing the arrangement of the electricity taking structure outside becomes a difficult point.

Disclosure of Invention

In view of the above, the present utility model aims to overcome the defects in the prior art, and provides a circuit breaker capable of realizing that an electricity taking structure is arranged outside a product.

The utility model provides a circuit breaker, which comprises a circuit breaker body, a circuit breaker control circuit board and a circuit breaker control circuit board, wherein the circuit breaker body comprises a circuit breaker shell, a wiring terminal and a control circuit board; the wiring terminals are distributed on two side surfaces of the circuit breaker shell; the protective cover is arranged beside the wiring terminal of the circuit breaker body, and the inner side of the protective cover is fastened or clamped and fixed with the shell of the circuit breaker body through screws; the power taking piece comprises a fixing part which is clamped with the inner side of the shield and a power taking part which extends towards the direction deviating from the shield, and the power taking part is used for being abutted on the wiring terminal and used for taking power; the electricity taking sheet further comprises a wire electrically connected with the control circuit board.

In some embodiments of the present utility model, two hooks extending in a direction away from the shroud are disposed on the inner side of the shroud, and a first bulge is disposed on the fixing portion, where the first bulge abuts against the inner sides of the two hooks to implement the locking.

In some embodiments of the utility model, a first abutting step is arranged on the inner side of the shield, and the connection part of the electricity taking part and the fixing part abuts against the first abutting step; the first abutting step is integrally located below the two clamping hooks.

In some embodiments of the utility model, a second abutting step is arranged on the inner side of the shield, and one end of the fixing part, which is far away from the electricity taking part, abuts against the second abutting step; the second abutting step is integrally located above the two clamping hooks.

In some embodiments of the present utility model, the temperature sensing device further comprises a temperature sensing element and a transmission wire, wherein the temperature sensing element is located between the protecting cover and the fixing part and is closely attached to the temperature sensing element, and the temperature sensing element is electrically connected with the control circuit board through the transmission wire.

In some embodiments of the utility model, the terminal is at least partially exposed by the wire hole; the side wall of the breaker shell is also provided with a power taking hole, and the power taking part penetrates into the power taking hole to be contacted with the wiring terminal.

In some embodiments of the utility model, the thickness dimension of the power taking hole is greater than the thickness dimension of the power taking part; and a filling bulge is further arranged on the inner side of the protective cover and used for filling a part of the electricity taking hole which is not occupied by the electricity taking part.

In some embodiments of the utility model, the circuit breaker further comprises a second wiring hole arranged on the shield in communication with the wiring hole, and an annular protrusion arranged on the inner side of the shield, the annular protrusion being for abutting on a side wall of the circuit breaker housing and being arranged around the wiring hole.

In some embodiments of the utility model, at least one barb is arranged on the periphery of the inner side of the protective cover, and a bayonet matched with the barb is arranged on the circuit breaker shell.

In some embodiments of the utility model, the circuit breaker is at least of a 3-pole structure, wherein one pole is a control pole and the rest is an open pole; the binding post sets up on the sky open, and control circuit board sets up in the control pole.

Compared with the prior art, the circuit breaker has the beneficial effects that the circuit breaker comprises a circuit breaker body, a circuit breaker shell, a wiring terminal and a control circuit board, wherein the wiring terminal and the control circuit board are arranged in the circuit breaker shell; the wiring terminals are distributed on two side surfaces of the circuit breaker shell; the protective cover is arranged beside the wiring terminal of the circuit breaker body, and the inner side of the protective cover is fastened or clamped and fixed with the shell of the circuit breaker body through screws; the power taking piece comprises a fixing part which is clamped with the inner side of the shield and a power taking part which extends towards the direction deviating from the shield, and the power taking part is used for being abutted on the wiring terminal and used for taking power; the electricity taking sheet further comprises a wire electrically connected with the control circuit board.

Adopt the guard shield with get the joint cooperation of electric piece, both guaranteed to get the structure setting of electric piece stable, realized again with getting the external effect of circuit breaker of electric piece, compare in prior art will get the inside that electric structure set up at the product, such structure is less to the inside structural design influence of product. Simultaneously, the two clamping hooks are used for clamping the fixing part, the first abutting boss abuts against the joint of the electricity taking part and the fixing part, the second abutting boss abuts against the electricity taking part and the like, so that the clamping of the electricity taking piece and the protective cover is facilitated. .

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic diagram of a circuit breaker according to some embodiments of the present utility model;

fig. 2 is a schematic diagram of a circuit breaker body according to some embodiments of the present utility model;

fig. 3 illustrates a schematic structural view of a shield provided in some embodiments of the present utility model.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed, mechanically connected, electrically connected, directly connected, indirectly connected via an intervening medium, or in communication between two elements or in an interaction relationship between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

Examples

As shown in fig. 1-3, the embodiment of the utility model provides a circuit breaker, in particular to a circuit breaker with a tripolar structure, namely, the circuit breaker is formed by assembling a bipolar open pole P and a pole control pole K side by side, wherein the bipolar open pole P and the pole control pole K jointly form a circuit breaker body 1, and an open pole shell P1 of the bipolar open pole P and a control pole shell K1 of the control pole K jointly form a circuit breaker shell 11. An operating mechanism, a moving contact, an instantaneous protection release, a thermal release and the like are arranged in the two-pole free pole P, and the operation mechanism, the moving contact, the instantaneous protection release and the thermal release are not described in detail in the prior art. Likewise, an electric operating mechanism and a control circuit board are arranged in the control electrode K, and the control principle and the transmission structure of the characteristics are all of the prior art and are not repeated. Similarly, the information samples from the electricity sampling sheet 3 and the temperature sensing element 4, such as current, voltage, temperature, etc., are fed back to the control circuit board, and are processed by the control circuit board, and the opening and closing of the circuit breaker or the feedback information to the host computer, the mobile terminal, etc. are controlled according to the processing result, and these are also the prior art, and will not be described in detail here.

Two groups of connecting terminals 10 are arranged inside the open pole P, the two groups of connecting terminals 10 are respectively arranged on two sides of the open pole P1, and the shield 2 is arranged adjacent to one group of connecting terminals 10.

The reverse hooks 27 are arranged at four corner positions of the inner side of the shield 2, the bayonet 14 matched with the reverse hooks 27 is arranged on the circuit breaker shell 11, and stable matching of the shield 2 and the circuit breaker shell 11 can be realized through matching of the reverse hooks 27 and the bayonet 14. Here, screw fastening may be used instead of the clamping, as long as the stable fitting of the shield 2 and the breaker housing 11 can be ensured.

The second wiring hole 25 is formed in the shield 2, the wiring hole 12 is formed in the open pole P1, and after the shield 2 is clamped with the circuit breaker housing 11, the second wiring hole 25, the wiring hole 12 and the wiring terminal 10 are aligned, so that the conductive strip or the conductive wire of the main circuit can pass through the second wiring hole 25 and the wiring hole 12 to be fixed with the wiring terminal 10.

Here, the annular protrusion 26 on the inner side of the shield 2, when the shield 2 is engaged with the circuit breaker housing 11, the annular protrusion 26 can be just abutted against the side wall of the open pole P, and the annular protrusion 26 surrounds the wiring hole 12, and can serve to separate the conductive strip or wire of the main circuit from other parts on the inner side of the shield 2, such as from the power take-off tab 3.

On the inner side of the shield 2, two hooks 21 extending in a direction away from the shield 2 are provided, a first abutment step 22 (also belonging to a part of the annular projection 26), a second abutment step 23, the first abutment step 22 being located entirely below the two hooks 21, and the second abutment step 23 being located entirely above the two hooks 21. The whole electricity taking sheet 3 is L-shaped and is provided with a fixing part 31 and an electricity taking part 32 which are connected in a bending way, the joint of the electricity taking part 32 and the fixing part 31 is abutted on the first abutting step 22, and one end of the fixing part 31, which is far away from the electricity taking part 32, is abutted on the second abutting step 23. The first bulge 31a is formed by winding the fixing part 31 of the electricity taking sheet 3 on the eccentric part by itself, and the first bulge 31a can just abut against the inner sides of the two clamping hooks 21, so that the technical effect that the two clamping hooks 21 fasten the fixing part 31 is realized, and the center of the first bulge 31a is of a hollow structure and can be used for connecting with a wire, namely the first bulge 31a can wind up the wire.

After the above-mentioned fastening is finished, the electricity taking portion 32 of the electricity taking sheet 3 may be inserted into the open pole housing P1 and abutted against the terminal 10 for taking electricity, where the other end of the electricity taking sheet 3 is electrically connected with the control circuit board through a wire, so that the control circuit board may obtain current from the terminal 10, and the voltage value, the current value or the electricity used for supplying electricity may be determined by the current, and no matter whether the voltage value, the current value or the electricity used for supplying electricity to the control circuit board is determined, the principle of the method is not described herein.

Here, in order to facilitate the electricity taking of the electricity taking sheet, an electricity taking hole 13 is formed in the side wall of the open pole casing P1, and the electricity taking portion 32 penetrates into the electricity taking hole 13 to contact with the connection terminal 10. Here, the thickness dimension of the electricity taking hole 13 is greater than the thickness dimension of the electricity taking part 32, and a filling protrusion 24 is further arranged on the inner side of the shield 2, and the filling protrusion 24 is used for filling the part of the electricity taking hole 13 not occupied by the electricity taking part 32, so that the effect that the electricity taking sheet 3 is not easy to be misplaced can be ensured.

The temperature sensing element 4 is also arranged at the inner side of the shield 2, a specific position is arranged between the shield 2 and the fixing part 31 and is just clamped and fixed by the fixing part 31, the temperature sensing element 4 can be tightly attached to the fixing part 31, the temperature on the wiring terminal 10 is indirectly sampled through the fixing part 31, and the temperature sensing element 4 feeds back a signal to the control circuit board through a transmission wire. It is common knowledge about how the temperature sensing element feeds back a signal to the control circuit board, and how the control circuit board calculates the temperature, and the details are not repeated here.

Although only a 3-pole circuit breaker is exemplified in the present embodiment, it can also be applied to a 2-pole or even 4-pole circuit breaker.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims (10)

1. A circuit breaker, comprising:

the circuit breaker body (1) comprises a circuit breaker shell (11), a wiring terminal (10) and a control circuit board, wherein the wiring terminal (10) and the control circuit board are arranged inside the circuit breaker shell (11); the wiring terminals (10) are distributed on two side surfaces of the breaker shell (11);

the shield (2) is arranged beside the wiring terminal (10) of the circuit breaker body (1), and the inner side of the shield (2) is fastened or clamped and fixed with the shell of the circuit breaker body (1) through screws;

the method is characterized in that:

the power taking device comprises a protective cover (2), and is characterized by further comprising a power taking piece (3), wherein the power taking piece (3) comprises a fixing part (31) clamped with the inner side of the protective cover (2) and a power taking part (32) extending towards the direction away from the protective cover (2), and the power taking part (32) is used for being abutted on a wiring terminal (10) to take power; the electricity taking sheet (3) further comprises a lead (33) electrically connected with the control circuit board.

2. The circuit breaker according to claim 1, characterized in that: two clamping hooks (21) extending towards the direction deviating from the shielding cover (2) are arranged on the inner side of the shielding cover (2), a first bulge (31 a) is arranged on the fixing portion (31), and the first bulge (31 a) is abutted to the inner sides of the two clamping hooks (21) to achieve clamping connection.

3. The circuit breaker according to claim 2, characterized in that: the inner side of the shield (2) is provided with a first abutting step (22), and the joint of the electricity taking part (32) and the fixing part (31) abuts against the first abutting step (22); the first abutting step (22) is integrally located below the two hooks (21).

4. A circuit breaker according to claim 3, characterized in that: the inner side of the shield (2) is provided with a second abutting step (23), and one end of the fixing part (31) far away from the electricity taking part (32) abuts against the second abutting step (23); the second abutting step (23) is integrally located above the two hooks (21).

5. The circuit breaker of claim 4, wherein: the temperature sensing device further comprises a temperature sensing element (4) and a transmission wire, wherein the temperature sensing element (4) is positioned between the protective cover (2) and the fixing part (31) and is clung to the temperature sensing element (4), and the temperature sensing element (4) is electrically connected with the control circuit board through the transmission wire.

6. The circuit breaker according to claim 2, characterized in that: a wiring hole (12) is formed in the side wall of the circuit breaker shell (11), and the wiring terminal (10) is at least partially exposed by the wiring hole (12); the side wall of the breaker shell (11) is also provided with a power taking hole (13), and a power taking part (32) penetrates into the power taking hole (13) to be contacted with the wiring terminal (10).

7. The circuit breaker of claim 6, wherein: the thickness dimension of the electricity taking hole (13) is larger than that of the electricity taking part (32); the inner side of the protective cover (2) is also provided with a filling bulge (24), and the filling bulge (24) is used for filling a part of the electricity taking hole (13) which is not occupied by the electricity taking part (32).

8. The circuit breaker of claim 6, wherein: the circuit breaker also comprises a second wiring hole (25) which is arranged on the shield (2) and communicated with the wiring hole (12), and an annular bulge (26) which is arranged on the inner side of the shield (2), wherein the annular bulge (26) is used for being abutted on the side wall of the circuit breaker shell (11) and is arranged around the wiring hole (12).

9. The circuit breaker according to claim 1, characterized in that: at least 3 barbs (27) are arranged on the periphery of the inner side of the protective cover (2), and bayonets (14) matched with the barbs (27) are arranged on the circuit breaker shell (11).

10. The circuit breaker according to claim 1, characterized in that: the circuit breaker is of a 3-pole structure at least, wherein one pole is a control pole (K), and the rest is an open pole (P); the connecting terminal (10) is arranged on the open pole (P), and the control circuit board is arranged in the control pole (K).