CN219065681U - Measuring device and circuit breaker - Google Patents

Abstract

The application relates to the field of electrical equipment, in particular to a measuring device and a circuit breaker. The measuring device is used for being connected with the circuit breaker, is equipped with the connecting hole on the circuit breaker, and measuring device includes the shell, and the shell outside is equipped with the arm that clamps, and the arm bending sets up, and the one end that the arm was kept away from the shell is connected with the trip, and the trip is used for inserting the connecting hole to connect circuit breaker and measuring device. When the bending setting of the clamping arm makes the clamping hook insert into the connecting hole, the clamping arm has more deformation dimensions, stress is not easy to concentrate too much to cause fracture, and after the clamping arm is bent and set up, the length of the clamping arm is correspondingly increased, and when the clamping hook is inserted into the connecting hole, the bending deflection that one end of the clamping arm for connecting the clamping hook can be allowed is increased, so that the clamping arm is not easy to fracture.

Description

Measuring device and circuit breaker

Technical Field

The embodiment of the application relates to the field of electrical equipment, in particular to a measuring device and a circuit breaker.

Background

The measuring device is a device for connecting to a circuit breaker to monitor the operating state of the circuit breaker, for example, for monitoring the voltage, current of each phase, power consumption of the circuit breaker, etc. when the circuit breaker is operated. The measuring device is generally connected with the circuit breaker in a plugging manner, and meanwhile, the part, which is required to be plugged into the circuit breaker, of the measuring device cannot occupy excessive space inside the circuit breaker and cannot influence the normal operation of the circuit breaker.

However, the portion of the existing measuring device for plugging with the circuit breaker is easily broken during the process of plugging into the circuit breaker, so that the two devices cannot be connected for use.

Disclosure of Invention

In view of the above, embodiments of the present application provide a measuring device and a circuit breaker, which can prevent breakage when the measuring device is connected to the circuit breaker.

In a first aspect, an embodiment of the present application provides a measuring device for be connected with the circuit breaker, be equipped with the connecting hole on the circuit breaker, measuring device includes the shell, and the shell outside is equipped with the arm, and the arm bending sets up, and the arm is kept away from the one end of shell and is connected with the trip, and the trip is used for inserting the connecting hole to connect circuit breaker and measuring device.

Through adopting above-mentioned scheme, when the crooked setting of arm of card makes trip insert the connecting hole, the arm of card has more deformation dimension, is difficult to make the stress excessively concentrate and leads to the fracture. In addition, after the clamping arm is bent and arranged, the length of the clamping arm is correspondingly increased, and when the clamping hook is inserted into the connecting hole, the bending deflection which can be allowed by one end of the clamping arm for connecting the clamping hook is increased, so that the clamping arm is not easy to break.

In one possible implementation manner, the clamping arm comprises a first section part and a second section part, one end of the first section part is connected with the shell, the other end of the first section part is connected with the second section part, one end of the second section part, which is far away from the first section part, is connected with the clamping hook, the first section part and the second section part form an included angle with each other, and the clamping hook is arranged on one side of a inferior angle of the included angle formed by the first section part and the second section part.

Through adopting above-mentioned scheme, when the trip inserts to the connecting hole, under the extrusion of circuit breaker, the trip drives the second section portion and warp to the reflex angle one side of the contained angle that first section portion and second section portion constitute, simultaneously, first section portion and second section portion all can take place the deformation of different degree to the trip gets into the connecting hole smoothly. When an external force tries to separate the measuring device from the circuit breaker, the clamping arm deforms under the clamping of the clamping hook, the first section part bends towards the side where the circuit breaker is located and drives the second section part and the clamping hook to displace towards the bending direction of the first section part, and the displacement direction is generally towards the inferior angle side.

In one possible implementation, the first section is substantially parallel to the surface of the housing on which the latch arm is located, and the second section is substantially perpendicular to the first section.

Through adopting above-mentioned scheme, when assembling measuring device to the circuit breaker, can aim at the connecting hole direct insertion on the circuit breaker with second section portion, mounting means is simple, and although the holistic length of card arm is longer, but because first section portion is basically on a parallel with the shell surface at card arm place, therefore, the shared space of first section portion is less, can not lead to measuring device to install the whole volume after the circuit breaker because of the buckle and show the increase.

In one possible implementation, the measuring device further comprises a power circuit board, and a convex part is arranged at one side edge of the power circuit board; a limiting hole is formed in the side wall of the shell corresponding to the convex part, and a limiting table is arranged on the inner wall of the shell on the side opposite to the limiting hole; the convex part is arranged in the limiting hole, and the edge of the power circuit board on the opposite side of the convex part is arranged between the limiting table and the side wall of the shell.

Through adopting above-mentioned scheme, two opposite edges of power supply circuit board receive spacing hole and spacing platform's restriction respectively and make power supply circuit board by firm fixed in the shell, be difficult to take place not hard up.

In one possible implementation, the measuring device further comprises a wire, one end of which is fixed on the power circuit board, and the other end of which extends outside the housing, and a clamping part is provided on the housing, and the clamping part clamps the wire.

Through adopting above-mentioned scheme, when the one end atress of shell is exposed to the wire, the effort can not directly act on the hookup location of wire and power circuit board, consequently the connection between wire and the power circuit board is difficult to take place not hard up and disconnection, has improved the stability of being connected between wire and the power circuit board.

In one possible implementation, the clamping portion includes opposing projections and grooves, and the wire passes between the projections and grooves and bends toward the grooves at the locations where the projections oppose the grooves.

Through adopting above-mentioned scheme, with wire in protruding head and recess relative department towards recess crooked setting for when wire one end received to pull, the wire is difficult to by the pulling in the atress of bend department multiple places, has protected the junction of wire and power circuit board, has further improved the stability of being connected between wire and the power circuit board.

In one possible implementation, the housing is provided with a wire passing groove along which the wire portion extends.

Through adopting above-mentioned scheme, the setting of wire casing makes the wire can not directly expose to reduce the unnecessary pulling of foreign matter to the wire.

In one possible implementation manner, the measuring device further comprises a signal circuit board, wherein the signal circuit board is arranged on one side of the power circuit board, a pin header is arranged on one of the power circuit board and the signal circuit board, and the pin header is arranged on the other one of the power circuit board and the signal circuit board and is inserted in the pin header so as to limit the relative positions of the power circuit board and the signal circuit board.

Through adopting above-mentioned scheme, utilize row's needle and row female cooperation, inject the relative position between power circuit board and the signal circuit board, simple structure, location effect is good.

In one possible implementation manner, the measuring device further includes a conductive sheet, a through hole is formed in the housing, one end of the conductive sheet extends from the through hole and is used for being electrically connected with the circuit breaker, a protruding rib is arranged on an inner wall of the through hole, and the protruding rib is matched with an inner wall of the through hole to clamp the conductive sheet, or a plurality of protruding ribs are matched with the protruding ribs to clamp the conductive sheet.

Through adopting above-mentioned scheme, when equipment conducting strip and shell, with the in-process that the conducting strip inserted from the through-hole, because the area of contact of conducting strip and protruding muscle is less, so the protruding muscle of extrusion relatively easily, perhaps excision unnecessary material on the protruding muscle, support each other tightly between final and the protruding muscle. In the use, when conducting strip is connected with the circuit breaker, because the conducting strip is pressed from both sides tightly, not only be favorable to being connected of conducting strip and circuit breaker, can prevent moreover that the conducting strip from being destroyed with the inside electric connection structure of measuring device.

In a second aspect, the application provides a circuit breaker, including the casing, be equipped with the connecting hole on the casing, one side that the connecting hole is close to the casing outside is equipped with the direction inclined plane, and the direction inclined plane is used for guiding the trip on the measuring device in any of the above-mentioned embodiments to insert in the connecting hole.

By adopting the scheme, the circuit breaker and the measuring device are convenient to install, and the measuring device is not easy to damage in the installation process.

The foregoing description is only an overview of the technical solutions of the embodiments of the present application, and may be implemented according to the content of the specification, so that the technical means of the embodiments of the present application can be more clearly understood, and the following detailed description of the present application will be presented in order to make the foregoing and other objects, features and advantages of the embodiments of the present application more understandable.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic overall structure of a measurement device according to an embodiment of the present application.

Fig. 2 is a schematic cross-sectional view of a measuring device according to an embodiment of the present application.

Fig. 3 is a schematic view of the clip arm according to an embodiment of the present application when mounted to the connection hole.

Fig. 4 is a view of the clamping arm in an embodiment of the present application when subjected to a force away from the circuit breaker.

Fig. 5 is an exploded view of a measuring device in an embodiment of the present application.

Fig. 6 is an exploded view of a portion of a housing and a power circuit board in an embodiment of the present application.

FIG. 7 is a schematic diagram of another cross-sectional configuration of a measuring device in an embodiment of the present application.

Fig. 8 is a schematic diagram of a measuring device connected to a circuit breaker according to an embodiment of the present application.

Fig. 9 is an enlarged view at a in fig. 8.

Reference numerals illustrate: 1. a housing; 2. a clamping arm; 21. a first segment; 22. a second segment; 3. a hook; 4. a power circuit board; 41. a convex portion; 5. a limiting hole; 6. a limiting table; 7. a signal circuit board; 8. arranging needles; 9. arranging a mother; 10. a wire; 11. a clamping part; 12. a nose; 13. a groove; 14. wire passing grooves; 15. a conductive sheet; 16. a through hole; 17. convex ribs; 18. a housing; 19. a connection hole; 20. and a guiding inclined plane.

Detailed Description

For the purposes of making the objects, technical solutions and advantages of the embodiments of the present application more clear, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used in the description of the applications herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having" and any variations thereof in the description and claims of the present application and in the description of the drawings are intended to cover a non-exclusive inclusion.

Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment may be included in at least one embodiment of the present application. The appearances of the phrase "an embodiment" in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.

Furthermore, the terms first, second and the like in the description and in the claims of the present application or in the above-described figures, are used for distinguishing between different objects and not for describing a particular sequential order, and may be used to expressly or implicitly include one or more such features.

In the description of the present application, unless otherwise indicated, the meaning of "plurality" means two or more (including two), and similarly, "plural sets" means two or more (including two).

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "coupled" are to be construed broadly, e.g., the terms "connected" or "coupled" of a mechanical structure may refer to a physical connection, e.g., the physical connection may be a fixed connection, e.g., by a fastener, such as a screw, bolt, or other fastener; the physical connection may also be a detachable connection, such as a snap-fit or snap-fit connection; the physical connection may also be an integral connection, such as a welded, glued or integrally formed connection. "connected" or "connected" of circuit structures may refer to physical connection, electrical connection or signal connection, for example, direct connection, i.e. physical connection, or indirect connection through at least one element in the middle, so long as circuit communication is achieved, or internal communication between two elements; signal connection may refer to signal connection through a medium such as radio waves, in addition to signal connection through a circuit. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

In the related art, the measuring device and the circuit breaker are installed and connected through the buckle, the buckle is generally arranged on the measuring device, the connecting hole is reserved on the circuit breaker, when the measuring device is required to be installed on the circuit breaker, the buckle of the measuring device is only required to be aligned with the connecting hole and inserted, in the inserting process, the clamping hook of the buckle is extruded by the wall of the connecting hole to enable the buckle to bend and deform, when the clamping hook part of the buckle completely enters the connecting hole, the pressure of the connecting hole to the clamping hook instantaneously disappears, the buckle recovers to deform, and the clamping hook is firmly clamped on the inner side of the connecting hole, so that the measuring device is firmly fixed on the circuit breaker.

In view of the problem that the measuring device in the related art is easy to break when assembled with the circuit breaker, the inventor finds that the broken parts are generally at the connection position of the buckle and the measuring device, that is, the part is easy to break due to stress concentration when the buckle is installed in the connecting hole. After further research, the inventor considers that the stress concentration at the position may be too short with the clamping arm of the buckle, so that the maximum deflection of the clamping arm is difficult to meet the requirement that the buckle is smoothly installed into the connecting hole when the buckle is inserted into the connecting hole, and therefore, larger acting force is concentrated at the connecting position of the clamping arm and the measuring device, and the clamping arm tries to deform to a greater extent.

In view of the above, the embodiments of the present application first provide a measuring device capable of preventing breakage from occurring when the measuring device is connected to a circuit breaker.

The embodiment of the application provides a measuring device for be connected with the connecting hole 19 on the circuit breaker, fig. 1 is the overall structure schematic diagram of measuring device, fig. 2 is the cross-section structure schematic diagram of measuring device, as shown in fig. 1 and 2, measuring device includes shell 1, the shell 1 outside is equipped with the arm 2, the crooked setting of arm 2, the one end that the shell 1 was kept away from to the arm 2 is connected with trip 3, trip 3 is used for inserting connecting hole 19, in order to connect circuit breaker and measuring device.

The clamping arm 2 is a part for connecting the measuring device and the clamping hook 3, and the position of the clamping hook 3 relative to the measuring device depends on the length and the bending shape of the clamping arm 2. The clamping arm 2 is made of elastic materials, so that the clamping hook 3 can deform when being inserted into the connecting hole 19, the clamping hook 3 can smoothly enter the connecting hole 19, and meanwhile, the clamping hook 3 can be driven to move towards the direction of the deformation recovery of the clamping arm 2 when the clamping hook 3 is deformed after entering the circuit breaker, so that the clamping hook 3 and the circuit breaker are clamped.

The hook 3 may be made of an elastic material or a non-elastic material, and the shape of the hook 3 may be any shape of protrusion, for example, the cross section of the hook 3 may be triangular, rectangular, circular, etc., which is not limited in the embodiment of the present application. The trip 3 is disposed on one side of the latch arm 2, and illustratively, when the latch arm 2 is bent in a plane, the trip 3 may be disposed on any side of the latch arm 2 in the plane, so that when the trip 3 receives the pushing force of the connection hole 19, the latch arm 2 is deformed to change the original bending degree, and such deformation is easier than deformation of the latch arm 2 along other directions. The hooks 3 may be provided on either side of the clip arms 2 when the clip arms 2 are bent in space.

The bending arrangement of the clamping arm 2 enables the clamping hook 3 to be inserted into the connecting hole 19, so that the clamping arm 2 has more deformation dimension, and the clamping arm is not easy to cause breakage due to too concentrated stress. In addition, after the clamping arm 2 is bent, the length of the clamping arm is correspondingly increased, and when the clamping hook 3 is inserted into the connecting hole 19, the allowable bending deflection of one end of the clamping arm 2 for connecting the clamping hook 3 is increased, so that the clamping arm is not easy to break.

Fig. 3 is a schematic view of the clamping arm 2 in an embodiment of the present application when mounted to the connection hole 19, and fig. 4 is a view of the clamping arm 2 in an embodiment of the present application when subjected to a force away from the circuit breaker. As shown in fig. 3 and 4, in one possible implementation manner, the clip arm 2 includes a first section 21 and a second section 22, one end of the first section 21 is connected with the housing 1, the other end is connected with the second section 22, one end of the second section 22 away from the first section 21 is connected with the clip hook 3, the first section 21 and the second section 22 form an included angle, and the clip hook 3 is disposed on one side of a inferior angle formed by the first section 21 and the second section 22.

The first section 21 and the second section 22 may form an acute angle, a right angle, or an obtuse angle, which is not limited in the embodiment of the present application.

The inferior angle refers to an angle smaller than 180 ° formed by the first section 21 and the second section 22, and correspondingly, the angle formed by the first section 21 and the second section 22 should also include an angle larger than 180 °, called a reflex angle, where the sum of the angles of the reflex angle and the inferior angle is 360 °.

As shown in fig. 3, when the hook 3 receives the first external force F ₁ When the hook 3 is pressed by the casing 18 of the circuit breaker to drive the second section 22 to deform towards the major angle side of the included angle formed by the first section 21 and the second section 22, and the first section 21 and the second section 22 deform to different degrees so that the hook 3 smoothly enters the connecting hole 19.

As shown in FIG. 4, when the second external force F ₂ When trying to separate the measuring device from the circuit breaker, under the clamping of the clamping hook 3, the clamping arm 2 will deform, the first section 21 will bend towards the side where the circuit breaker is located, and drive the second section 22 and the clamping hook 3 to displace towards the bending direction of the first section 21, and the direction of displacement is generally towards the inferior angle side, because the clamping hook 3 is located at the inferior angle side of the included angle formed by the first section 21 and the second section 22, the displacement can make the clamping between the clamping hook 3 and the circuit breaker tighter, so that the measuring device can still firmly buckle the circuit breaker when receiving external vibration, impact and impact force, and is not easy to drop.

As shown in fig. 3 and 4, in one possible implementation, the first section 21 is substantially parallel to the surface of the housing 1 on which the latch arm 2 is located, and the second section 22 is substantially perpendicular to the first section 21.

In this application, the first section 21 is substantially parallel to the surface of the housing 1 where the clip arm 2 is located, and the angle between the length direction of the first section 21 and the surface of the housing 1 where the clip arm 2 is located is between-30 ° and 30 °. The second segment 22 being substantially perpendicular to the first segment 21 means that the angle between the longitudinal direction of the first segment 21 and the longitudinal direction of the second segment 22 is between 60 ° and 120 °.

It will be appreciated that, after such arrangement, the second section 22 is substantially perpendicular to the surface of the housing 1 on which the clamping arm 2 is located, so that when the measuring device is assembled to the circuit breaker, the second section 22 can be directly inserted in alignment with the connecting hole 19 on the circuit breaker, the mounting manner is simple, and the overall size of the measuring device after being mounted to the circuit breaker is not significantly increased due to the small space occupied by the first section 21 because the first section 21 is substantially parallel to the surface of the housing 1 on which the clamping arm 2 is located, although the overall length of the clamping arm 2 is long.

Fig. 5 is an exploded view of the measuring device according to an embodiment of the present application, and fig. 6 is an exploded view of a portion of the housing 1 and the power circuit board 4 according to an embodiment of the present application, as shown in fig. 5 and 6, in one possible implementation, the measuring device includes the power circuit board 4, and a protrusion 41 is provided at one side edge of the power circuit board 4; the side wall of the shell 1 is provided with a limit hole 5 corresponding to the convex part 41, and the inner wall of the shell 1 at the side opposite to the limit hole 5 is provided with a limit table 6; the protruding portion 41 is disposed in the limiting hole 5, and the edge of the power circuit board 4 on the opposite side of the protruding portion 41 is disposed between the limiting table 6 and the side wall of the housing 1.

The power circuit board 4 is a component for supplying power to an electronic device in the measuring device, after the power circuit board 4 is connected with an external power supply, the component connected with the power circuit board 4 in the measuring device is powered, the convex part 41 is an obvious convex part arranged at the edge of the power circuit board 4, generally, the edge of the power circuit board 4 is flush or smoothly changed, the convex part 41 is arranged on the power circuit board 4, and the convex part 41 is arranged in the limiting hole 5, so that the whole of the power circuit board 4 is limited by the local part of the power circuit board 4, and the power circuit board is simple in structure and lower in cost.

The limiting holes 5 are formed in the side wall of the housing 1, the limiting holes 5 can penetrate through the side wall where the limiting holes 5 are located, and the limiting holes 5 do not penetrate through the side wall where the limiting holes are located, so long as the limiting holes 5 can accommodate at least part of the protruding portions 41, the number and the positions of the limiting holes 5 correspond to the number and the positions of the protruding portions 41 on the power circuit board 4, and accordingly the protruding portions 41 are accommodated in one-to-one correspondence.

The limiting table 6 is protruding from the side wall of the casing 1, alternatively, the side wall of the limiting table 6 near the loading side of the power circuit board 4 may be configured as an inclined plane, so that the power circuit board 4 can conveniently squeeze the inclined plane in the process of loading the casing 1, deform the limiting table 6 along the opposite direction of the inclined plane, and displace the power circuit board 4 along the inclined plane, and finally load the casing 1 smoothly.

During installation, the edge of the power circuit board 4, which is provided with the protruding part 41, corresponds to the side wall of the shell 1, which is provided with the limiting hole 5, and the protruding part 41 on the power circuit board 4 is inserted into the corresponding limiting hole 5, in the process of continuously installing the power circuit board 4 into the shell 1, the edge of the power circuit board 4, which is opposite to the protruding part 41, is inevitably blocked by the limiting table 6 on the inner wall of the shell 1, at the moment, only the power circuit board 4 needs to be pressed down towards one side of the limiting table 6, at the moment, the power circuit board 4 and the limiting table 6 are deformed to a certain extent, so that the power circuit board 4 overcomes the resistance of the limiting table 6 and enters the other side of the limiting table 6, at the moment, one side edge of the power circuit board 4 is limited by the limiting table 6 and the side wall of the shell 1, the other side edge of the power circuit board 4 is limited by the limiting hole 5, and finally the power circuit board 4 is firmly fixed in the limiting region defined by the limiting table 6 and the limiting hole 5, displacement and large shaking do not easily occur, and the stability of the internal electric connection of the measuring device is improved.

As shown in fig. 5, in one possible implementation, the measuring device further includes a signal circuit board 7, where the signal circuit board 7 is disposed on one side of the power circuit board 4, one of the power circuit board 4 and the signal circuit board 7 is provided with a pin header 8, and the other one is provided with a pin header 9, and the pin header 8 is inserted into the pin header 9 to define a relative position of the power circuit board 4 and the signal circuit board 7.

The pin 8 is a plurality of pin-shaped components, the pin 9 is a component containing holes, the number of the pins 8 can be multiple, the positions and the number of the pins 8 are not limited, the number of the holes of the pin 9 is at least greater than that of the pins 8, and the holes on the pin 9 are at least arranged at the positions corresponding to the pins 8, so that each pin 8 can be plugged with the corresponding hole.

In the above-mentioned scheme, the pin header 8 may be disposed on the power circuit board 4, the pin header 9 may be disposed on the signal circuit board 7, or the pin header 8 may be disposed on the signal circuit board 7, and the pin header 9 may be disposed on the power circuit board 4, which is not limited in this embodiment of the present application.

In the scheme, the pin header 8 is matched with the pin header 9 to limit the relative position between the power circuit board 4 and the signal circuit board 7, so that the structure is simple, and the positioning effect is good.

In some embodiments, the pin header 8 and the pin header 9 are made of metal, so that the pin header 8 and the pin header 9 can be plugged together to achieve not only the mutual positioning of the power circuit board 4 and the signal circuit board 7, but also the electrical connection of the power circuit board 4 and the signal circuit board 7.

In one possible implementation, as shown in fig. 2, the measuring device further includes a wire 10, one end of the wire 10 is fixed on the power circuit board 4, and the other end extends to the outside of the housing 1, and a clamping portion 11 is provided on the housing 1, and the clamping portion 11 clamps the wire 10.

Through adopting above-mentioned scheme, when wire 10 exposes the one end atress of shell 1, the effort can not directly act on the hookup location of wire 10 and power circuit board 4, consequently the connection between wire 10 and the power circuit board 4 is difficult to take place not hard up and disconnection, has improved the stability of being connected between wire 10 and the power circuit board 4.

The structure of the clamping portion 11 may be various.

For example, in some embodiments, the clamping portion 11 is a coiled structure, the wire 10 passes through the middle of the coiled structure and is wrapped by the coiled structure, and when one end of the wire 10 is stressed, the coiled structure firstly bears the stress, and secondly transmits the stress to the connection portion of the wire 10 and the power circuit board 4.

In other embodiments, the clamping portion 11 includes two opposing portions that snap together to clamp the wire 10 therebetween.

Alternatively, the two opposite parts may be respectively connected to different parts of the housing 1, for example, the housing 1 includes a base and an upper cover, and one part of the clamping part 11 is connected to the base and the other part is connected to the upper cover, and when the base is connected to the upper cover, the two parts of the clamping part 11 are in opposite positions, and the wire 10 is clamped between the two parts, which can also achieve the effect that when one end of the wire 10 is stressed, the clamping part 11 is stressed before the connection position of the wire 10 to the power circuit board 4.

As shown in fig. 2, in still other embodiments, the clamping portion 11 includes a nose 12 and a groove 13 that are positioned opposite, and the wire 10 passes between the nose 12 and the groove 13 and is bent toward the groove 13 at a position where the nose 12 is opposite the groove 13.

Wherein, the raised head 12 refers to a raised structure, the groove 13 refers to a recessed structure, the position of the bald head opposite to the groove 13 refers to the raised direction of the raised head 12 facing to the recessed side of the groove 13, wherein, the raised head 12 can be partially positioned in the groove 13 or not positioned in the groove 13 at all.

It should be noted that, the bending of the wire 10 may be performed by pre-bending the wire 10 and then inserting the wire between the nose 12 and the groove 13, or by pressing the wire 10 by bringing the portion of the clamping portion 11 where the nose 12 is located and the portion of the clamping portion 11 where the groove 13 is located close to each other after inserting the wire 10 between the nose 12 and the groove 13. Both the above two modes are that the wire 10 is bent at a specific position, and the bending part forms an interaction force with the clamping part 11 when one end of the wire 10 is stressed, so that the stress of the exposed end of the wire 10 is prevented from directly acting on the connection position of the wire 10 and the power circuit board 4, the wire 10 is not easy to pull, the connection position of the wire 10 and the power circuit board 4 is protected, and the connection stability between the wire 10 and the power circuit board 4 is further improved.

As shown in fig. 1 and 2 and 5, in one possible implementation, the housing 1 is provided with a wire passing groove 14, and the wire 10 extends partially along the wire passing groove 14.

The wire passing groove 14 may be opened at only both ends so that the wire 10 is introduced from one end and led out from the other end, so that the portion of the wire 10 located in the wire passing groove 14 is not exposed to the outside and thus is not easily damaged. The wire passing groove 14 may also be opened on three sides, and one side of the portion of the wire 10 extending in the wire passing groove 14 is exposed, so that the wire 10 is conveniently directly installed in the wire passing groove 14 from the opening on the side, and the wire 10 is substantially located in the wire passing groove 14, so that the wire passing groove 14 can protect the wire 10, so that the wire 10 is not easily pulled and damaged by external objects.

Fig. 7 is another cross-sectional view of the measuring device according to the embodiment of the present application, fig. 8 is a schematic diagram of the connection of the measuring device to the circuit breaker, fig. 9 is an enlarged view of a portion a in fig. 8, and as shown in fig. 7, fig. 8 and fig. 9, in a possible implementation manner, the measuring device further includes a conductive sheet 15, a through hole 16 is provided on the housing 1, one end of the conductive sheet 15 extends from the through hole 16 and is used for being electrically connected to the circuit breaker, a rib 17 is provided on an inner wall of the through hole 16, and the rib 17 cooperates with an inner wall of the through hole 16 to clamp the conductive sheet 15, or a plurality of ribs 17 cooperate to clamp the conductive sheet 15.

The ribs 17 are protruding portions from the inner wall of the smooth through hole 16, and since the surface area of the end of the ribs 17 near the conductive sheet 15 is often smaller than the inner wall area of the through hole 16, when the conductive sheet 15 passes through the through hole 16, the ribs 17 are easily pressed to deform or the tops of the ribs 17 are cut off, so that the conductive sheet 15 can pass smoothly, and in that way, the ribs 17 can be closely attached to the conductive sheet 15 after the conductive sheet 15 is assembled.

Wherein, the convex rib 17 can be arranged on one side inner wall of the through hole 16 or on two opposite side inner walls of the through hole 16, when the convex rib 17 is arranged on one side inner wall of the through hole 16, the convex rib 17 is matched with the opposite side inner wall of the through hole 16 to clamp the conductive sheet 15; when the ribs 17 are provided on the inner walls of the opposite sides of the through hole 16, the ribs 17 on the both sides of the conductive sheet 15 are fitted to each other to clamp the conductive sheet 15.

After adopting above-mentioned structure to assemble conducting strip 15, in the use, when conducting strip 15 is connected with the circuit breaker, because conducting strip 15 is pressed from both sides tightly, be difficult to appear not hard up, not only be favorable to conducting strip 15 and circuit breaker's connection, can prevent moreover that conducting strip 15 and the inside electric connection structure of measuring device from being destroyed.

It can be appreciated that the protruding ribs can also be arranged at the insertion holes for inserting the conductive sheet 15 on the circuit breaker, and when the conductive sheet 15 is inserted into the circuit breaker, the protruding ribs are beneficial to clamping the conductive sheet 15, so that the electrical connection between the circuit breaker and the conductive sheet 15 is more stable.

The application also provides a circuit breaker, as shown in fig. 3 and 4, the circuit breaker includes a housing 18, a connecting hole 19 is provided on the housing 18, a guiding inclined plane 20 is provided on a side of the connecting hole 19 near the outside of the housing 18, and the guiding inclined plane 20 is used for guiding the hook 3 on the measuring device in any embodiment to be inserted into the connecting hole 19.

The guiding inclined surface 20 needs to meet the requirement that the guiding inclined surface 20 inclines from the outside of the casing 18 to the inside of the casing 18 in the direction from the far away from the connecting hole to the near away from the connecting hole 19, and on the basis that this condition is met, the guiding inclined surface 20 may be a plane or an arc surface, or may be a combination of multiple sections of planes or arc surfaces, which is not limited in the embodiment of the present application.

In the process of assembling the measuring device to the circuit breaker, the clamping hook 3 on the measuring device can be aligned with the connecting hole 19 on the circuit breaker shell 18 and inserted, in the process of insertion, the clamping hook 3 is abutted against the guide inclined surface 20, and along with continuous force application, the clamping hook 3 deforms, slides into the connecting hole 19 along the guide inclined surface 20, gradually passes through the connecting hole 19 and enters the circuit breaker, at the moment, the abutting force of the inner wall of the connecting hole 19 to the clamping hook 3 is instantaneously disappeared or reduced, the clamping hook 3 is restored to the original shape, and is hooked on the inner side of the connecting hole 19, so that the circuit breaker is connected with the measuring device.

In summary, the measuring device provided in the embodiments of the present application is beneficial to be connected with a circuit breaker, and is not easy to damage in the connection process.

The above embodiments are only for illustrating the technical solution of the present application, and are not limiting thereof; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the corresponding technical solutions.

Claims (10)

1. The utility model provides a measuring device for be connected with the circuit breaker, be equipped with the connecting hole on the circuit breaker, its characterized in that, measuring device includes the shell, the shell outside is equipped with the card arm, the card arm is crooked to be set up, the card arm is kept away from the one end of shell is connected with the trip, the trip is used for inserting the connecting hole, in order to connect the circuit breaker with measuring device.

2. The measuring device according to claim 1, wherein the clamping arm comprises a first section and a second section, one end of the first section is connected with the housing, the other end of the first section is connected with the second section, one end of the second section away from the first section is connected with the clamping hook, the first section and the second section form an included angle, and the clamping hook is arranged on one side of a inferior angle formed by the first section and the second section.

3. The measurement device of claim 2, wherein the first section is substantially parallel to the housing surface on which the snap arm is located, and the second section is substantially perpendicular to the first section.

4. The measurement device of claim 1, further comprising a power circuit board, wherein a side edge of the power circuit board is provided with a protrusion; a limiting hole is formed in the side wall of the shell corresponding to the convex part, and a limiting table is arranged on the inner wall of the shell at the side opposite to the limiting hole; the convex part is arranged in the limiting hole, and the edge of the power circuit board on the opposite side of the convex part is arranged between the limiting table and the side wall of the shell.

5. The measuring device of claim 4, further comprising a wire having one end fixed to the power circuit board and the other end extending outside the housing, a clamping portion being provided on the housing, the clamping portion clamping the wire.

6. The measuring device of claim 5, wherein the clamp includes opposed projections and recesses, the wire passing between the projections and the recesses and being bent toward the recesses at the positions of the projections opposite the recesses.

7. The measuring device of claim 5, wherein the housing is provided with a wire passing slot along which the wire portion extends.

8. The measurement device of claim 4, further comprising a signal circuit board disposed on one side of the power circuit board, wherein one of the power circuit board and the signal circuit board is provided with a pin header, and the other one of the power circuit board and the signal circuit board is provided with a pin header, and the pin header is inserted into the pin header to define a relative position of the power circuit board and the signal circuit board.

9. The measuring device according to claim 1, further comprising a conductive sheet, wherein the housing is provided with a through hole, one end of the conductive sheet extends from the through hole and is used for being electrically connected with a circuit breaker, a convex rib is arranged on the inner wall of the through hole, and the convex rib is matched with the inner wall of the through hole to clamp the conductive sheet, or a plurality of convex ribs are matched with the convex rib to clamp the conductive sheet.

10. A circuit breaker, comprising a housing, wherein a connecting hole is formed in the housing, a guiding inclined plane is formed on one side, close to the outside of the housing, of the connecting hole, and the guiding inclined plane is used for guiding a hook on the measuring device according to any one of claims 1 to 9 to be inserted into the connecting hole.

Images