CN216209384U

CN216209384U - Ammeter convenient to installation shunt

Info

Publication number: CN216209384U
Application number: CN202122213611.2U
Authority: CN
Inventors: 卢衍利
Original assignee: Zhejiang Chao Rong Power Technology Co ltd
Current assignee: Zhejiang Chao Rong Power Technology Co ltd
Priority date: 2021-09-13
Filing date: 2021-09-13
Publication date: 2022-04-05
Anticipated expiration: 2031-09-13

Abstract

The utility model discloses an ammeter convenient for installing a shunt, which comprises a plurality of wiring terminals and a shunt, wherein a wiring cavity, a first fastening hole and a first notch are formed in each wiring terminal, a bolt penetrates through the first fastening hole and the first notch, the first fastening hole and the first notch are communicated with the wiring cavity, a sampling resistor is arranged on the shunt, one end of the shunt penetrates through the first notch of one wiring terminal and extends into the wiring cavity, and the other end of the shunt penetrates through the first notch corresponding to the wiring terminal and extends into the wiring cavity; the shunt is convenient to fix, stable in structure and not easy to fall off.

Description

Ammeter convenient to installation shunt

Technical Field

The utility model relates to an electric meter with a shunt convenient to install.

Background

In the ammeter, the current is sampled through the shunt, so that the metering effect is realized. The existing shunt and the connecting terminal are connected through welding or a wire, so that the electrical connection effect between the shunt and the connecting terminal is realized, the processing procedures are increased by adopting the two connection modes, the phenomena of insufficient solder, missing solder and the like easily exist in the welding process, and the actual electrical connection effect is seriously influenced.

SUMMERY OF THE UTILITY MODEL

The utility model mainly solves the technical problem of providing an electric meter convenient for installing a current divider.

The technical scheme adopted by the utility model for solving the technical problems is as follows: the utility model provides an ammeter convenient to installation shunt, wherein, includes a plurality of binding post and shunt, is equipped with the wiring chamber in the binding post, is used for first fastening hole and the first breach that the bolt passed, first fastening hole, first breach all with wiring chamber intercommunication, be equipped with sampling resistor on the shunt, the one end of shunt is passed one of them binding post's first breach and is stretched into its wiring intracavity, the other end of shunt passes the first breach that corresponds with binding post and stretches into its wiring intracavity.

Adopt this kind of structure setting, pass first fastening hole through the bolt and stretch into to the wiring intracavity for the outside wire is direct to be connected with the wire through the shunt, thereby realizes the electrical connection effect of shunt, and the sampling resistance of shunt is direct to be connected with the inside circuit board of ammeter, thereby realizes the effect of electric energy measurement. And the arrangement of the first notch is adopted, so that the shunt is more convenient to fix.

The length of the shunt extending into the wiring terminal is at least one half of the whole width of the wiring terminal.

Through the limitation of shunt length to make holistic electric connection effect obtain guaranteeing, prevent to take place contact failure.

The first notch penetrates through the side face of the wiring terminal.

First breach adopts this kind of structure setting for binding post need not to confirm the direction at fixed in-process, simultaneously, adopts to run through the setting, makes the length of shunt can be longer, better realization electrical connection effect.

Wherein, still include the wiring subassembly, be equipped with the fixed chamber of a plurality of and binding post adaptation on the wiring subassembly, be equipped with the second breach on the fixed chamber side towards corresponding fixed chamber, the shunt passes second breach, first breach in proper order.

Through the setting in fixed chamber for binding post is fixed more convenient stable, and through the setting of second breach, makes the fixed of shunt obtain the second time fixed, improves whole fixed intensity, and simultaneously, the shunt is located binding post's bottom surface, and when binding post and fixed chamber are fixed the back, also play fixed effect equally, the shunt can't drop this moment.

Wherein, be equipped with the bottom plate on the wiring subassembly, the fixed chamber is sealed in bottom plate and the cooperation of wiring subassembly.

The arrangement of the bottom plate is adopted, so that the sealing effect of the fixed cavity is realized, and the protection effect of the shunt is further improved.

Wherein, be equipped with the draw-in groove on the wiring subassembly, be equipped with the buckle on the bottom plate, the buckle stretches into to draw-in groove internal fixation.

The cooperation of buckle and draw-in groove is adopted for the bottom plate is fixed more conveniently, can realize the effect of quick installation and dismantlement.

The connecting component is provided with a second fastening hole on one side facing the shell, and the bolt penetrates through the shell and is fixedly connected with the second fastening hole.

Through bolted connection between wiring subassembly and the casing for wiring subassembly and casing components of a whole that can function independently set up, realize the fastening effect through second fastening hole.

Wherein, the wiring subassembly is equipped with the first location muscle of a plurality of towards casing one side.

Through the setting of first location muscle for better realization fixed effect between wiring subassembly and the casing.

Wherein, wiring subassembly is equipped with a plurality of second location muscle towards casing one side, and first location muscle is perpendicular in the space with second location muscle.

The longitudinal and transverse positioning ribs are adopted, so that the fixing effect of the wiring assembly is further improved.

Wherein, the wiring assembly faces the fourth gap on one side of the shell.

The setting of fourth breach for the wire that is connected with sampling resistor can be better stretches into to the casing.

The wiring assembly further comprises a first sealing cover, and a lead sealing hole and a lead sealing part are arranged on the first sealing cover.

Through the setting of lead sealing hole and lead sealing portion for when first closing cap and wiring subassembly cooperation are fixed, still played the fixed effect of lead sealing.

The wiring assembly is provided with a fixing hole, and the bolt penetrates through the upper cover and the third notch to be fixedly connected with the fixing hole.

The third breach sets up for at fixed in-process, formed one and dodged the effect, make upper cover and wiring subassembly cooperation be connected, thereby realize holistic fixed effect.

Drawings

FIG. 1 is a schematic structural view of embodiment 1 of the present invention;

FIG. 2 is a schematic structural view of a housing in embodiment 1 of the present invention;

FIG. 3 is a partial structural view of a wiring member in embodiment 1 of the present invention;

FIG. 4 is a schematic structural view of a main body in embodiment 1 of the present invention;

FIG. 5 is a front view of a main body in embodiment 1 of the utility model;

fig. 6 is a schematic structural view of a connection terminal in embodiment 1 of the utility model;

fig. 7 is a side view of a connection terminal in embodiment 1 of the utility model;

FIG. 8 is a schematic structural view of a flow divider in example 1 of the present invention;

fig. 9 is a schematic structural view of the base plate in embodiment 1 of the present invention.

Detailed Description

Example 1:

referring to fig. 1-9, an electricity meter for facilitating installation of a shunt includes a wiring assembly 1, a housing 2, and a cover 3.

Wiring subassembly 1 is the modularization setting, and wiring subassembly 1 is independent equipment promptly, and the equipment is accomplished the back, just splices with casing 2, realizes holistic fixed effect of connecting.

The specific structure is that the wiring assembly 1 comprises a main body 4, a first cover 5 and a bottom plate 6.

The main body 4 is provided with a plurality of fixing cavities 41 for fixing the connection terminals, the number of the fixing cavities 41 can be selected according to actual requirements, and in the embodiment, only four fixing cavities 41 are taken as an example for description. The fixing cavity 41 is opened up and down, and the fixing cavity 41 is further provided with a wiring hole 411 towards the front end side, and an external wire extends into the fixing cavity 41 through the wiring hole 411. The side surface of the lower opening of the fixed cavity 41 is provided with a second notch 412, where the second notch 412 is located at one end close to the adjacent fixed cavity 41, more specifically, two fixed cavities 41 located at the left side are a group, two fixed cavities 41 located at the right side are a group, the two groups of fixed cavities 41 have the same structure, and the second notch 412 is communicated with the fixed cavities 41 located at the same group. In addition, it should be further described that the fixing cavity 41 is used for fixing the wiring terminal 7, the wiring terminal 7 is in interference fit with the fixing cavity 41, the wiring terminal 7 extends into the fixing cavity 41 from the lower side of the fixing cavity 41 to be fixed, the upper end of the wiring terminal 7 is communicated with the upper opening of the fixing cavity 41, and an external bolt can penetrate through the fixing cavity 41 and the first fastening hole 71 to extend into the fixing cavity 41, so that the connection and fixing effect between the lead and the shunt 8 is achieved.

The underside of the body 4 is connected to the base plate 6, so that the underside is sealed, and the fixing chamber 41 is also sealed. The side is connected fixedly through first closing cap 5 on the main part 4, realizes sealing effect, prevents that other people from dismantling the installation.

The whole wiring component 1 is arranged in a modularized mode, so that the effect of connecting and fixing the wiring component with the shell 2 is achieved. The main body 4 is provided with a second fastening hole 42, a fourth notch 43, a first positioning rib 44 and a second positioning rib 45 on one side facing the shell 2, the second fastening hole 42 is mainly used for being connected and matched with the shell 2, and a bolt penetrates through the shell 2 to be connected with the second fastening hole 42, so that the connection between the wiring assembly 1 and the shell 2 is fixed. First location muscle 44 and second location muscle 45 all play the fixed effect in location when main part 4 and casing 2 cooperate, first location muscle 44 and second location muscle 45 independently set up for the separation, there is not any connection between the two, first location muscle 44 is vertical setting, first location muscle 44 is perpendicular main part 4 downside promptly, second location muscle 45 is horizontal level setting, second location muscle 45 and main part 4 downside set up for the level promptly, thereby make first location muscle 44 and second location muscle 45 be perpendicular setting on the space direction, the hypothetical center line between them is perpendicular setting promptly. Through the setting of first location muscle 44 and second location muscle 45 for first location muscle 44 cooperates with the through-hole 21 on second location muscle 45 and the casing 2, thereby realizes the fixed effect in location.

Fourth breach 43 mainly used passes with the wire that sampling resistor is connected, and wire one end is connected the back with sampling resistor, and the wire other end passes fourth breach 43 and stretches into to casing 2 in, realizes that sampling resistor and the inside circuit board of casing 2 are connected, realizes holistic electric connection effect, forms the ammeter measurement.

Be equipped with lead sealing hole 51, lead sealing portion 52 and third breach 53 on the first closing cap 5, lead sealing hole 51 mainly used lead sealing screw's fixed, the lead sealing screw passes lead sealing hole 51 and is connected fixedly with main part 4, then is connected lead sealing screw and lead sealing portion 52 through the lead sealing spare and fixes, realizes the lead sealing effect, and after the lead sealing is fixed, inside binding post 7 can't directly be dismantled, must demolish lead sealing spare and just can dismantle first closing cap 5.

The third gap 53 is mainly matched with the fixing hole of the main body 4, and the bolt penetrates through the upper cover 3 and the third gap 53 to be connected and fixed with the fixing hole, so that the effect of connecting and fixing the upper cover 3 and the wiring assembly 1 is realized. Further, here, in order to improve the overall fixing effect, a plug member may be provided on the upper cover 3, and the bolt may achieve a sealing effect.

Bottom plate 6 is used for sealing the downside of main part 4, be detachable connection between bottom plate 6 and the main part 4, preferably in this embodiment, be equipped with draw-in groove 46 on the side of the main part 4 downside, be equipped with buckle 61 on bottom plate 6, buckle 61 stretches into to draw-in groove 46 internal fixation to realize the linkage effect of bottom plate 6 and main part 4, fixed for better realization, the quantity of buckle 61 is two in this embodiment, two buckle 61 divide and establish on the both sides of bottom plate 6.

Be fixed with binding post 7 and shunt 8 in the wiring subassembly 1, binding post 7 specifically is located fixed intracavity 41 internal fixation, be equipped with first fastening hole 71 on binding post 7's the top, wiring chamber 72 and first breach 73, binding post 7 stretches into to fixed intracavity 41 from the lower extreme in fixed intracavity 41, at this moment, first fastening hole 71 and main part 4 go up the side intercommunication, the bolt passes first fastening hole 71 and stretches into to binding post 7's wiring chamber 72 in, thereby realize that external conductor is fixed with being connected of shunt 8. Through the setting of fixed chamber 41, make binding post 7 fixed more convenient stable, and through the setting of second breach 412, make the fixed of shunt 8 obtain the second time fixed, improve the intensity of monolithic stationary, and simultaneously, shunt 8 is located binding post 7's bottom surface, after binding post 7 is fixed with fixed chamber 41, also play fixed effect equally, make shunt 8 and binding post laminate firmly, even the external conductor is not connected with shunt 8, the external conductor also can form the electric connection effect through binding post 7 and shunt 8.

The wiring cavity 72 is hollow for securing external wires. First breach 73 is located the side of binding post 7 bottom surface, shunt 8 passes first breach 73 and stretches into to wiring chamber 72 in, the size of first breach 73 is greater than the size of shunt 8 here, it penetrates to be convenient for shunt 8, for the fixed effect of better realization shunt 8, first breach 73 runs through binding post 7's side in this embodiment, first breach 73 adopts this kind of structure setting, make binding post 7 at fixed in-process, need not to confirm the direction, and simultaneously, the adoption runs through the setting, make shunt 8's length can be longer, better realization electrical connection effect.

Shunt 8 is the thin slice setting, and shunt 8 is electrically conductive material, and shunt 8 both ends stretch into respectively to corresponding binding post 7 in to realize the fixed effect of connection of shunt 8, shunt 8 passes second breach 412, first breach 73 promptly and stretches into to wiring chamber 72 in, then passes first fastening hole 71 through the bolt and stretches into to wiring chamber 72 in, with the crimping of external conductor towards shunt 8, thereby realizes holistic electric connection effect. The shunt 8 connects the same group of terminals 7 here, so that an electrical connection is achieved. In order to achieve better electrical connection, in the present embodiment, the length of the shunt 8 extending into the terminal 7 is at least one half of the entire width of the terminal 7, and the length of the shunt 8 extending into the terminal 7 is at least two thirds. The length of the shunt 8 is limited, so that the whole electrical connection effect is ensured, and poor contact is prevented. The middle position of the shunt 8 is provided with a sampling resistor 81, the sampling resistor 81 is connected with the circuit board inside the casing 2 through a wire, and the wire passes through the fourth notch 43 and extends into the casing 2. When the shunt 8 is fixed, the sampling resistor 81 is located between the two fixed chambers 41.

The housing 2 is connected and fixed with the wiring assembly 1, and the housing 2 is internally provided with parts such as a circuit board, an indicating piece and the like, and the structure in the housing 2 is the prior art, so the details are not repeated in this embodiment.

The upper cover 3 is sleeved on the shell 2 to realize the sealing effect of the shell 2, one end of the upper cover 3 close to the wiring component 1 is fixedly connected with the main body 4, the bolt penetrates through the upper cover 3 and the third notch 53 to extend into the fixing hole of the main body 4 to be fixedly connected, so that the connecting effect is realized, and the other end of the upper cover 3 is fixedly connected with the shell 2. For better realization anti-disassembly effect, all be equipped with the plug member on the 3 both ends of upper cover, the plug member is located the top of bolt.

Adopt this kind of structure setting, pass first fastening hole 71 through the bolt and stretch into to wiring chamber 72 in for the outside wire is direct to be connected with the wire through shunt 8, thereby realizes the electrical connection effect of shunt 8, and the sampling resistor of shunt 8 is direct to be connected with the inside circuit board of ammeter, thereby realizes the effect of electric energy measurement. Moreover, the arrangement of the first notch 73 is adopted, so that the shunt 8 is more convenient to fix.

Claims

1. An ammeter convenient to installation shunt which characterized in that: including a plurality of binding post and shunt, be equipped with the wiring chamber in the binding post, be used for first fastening hole and the first breach that the bolt passed, first fastening hole, first breach all communicate with the wiring chamber, are equipped with sampling resistor on the shunt, and the one end of shunt is passed one of them binding post's first breach and is stretched into its wiring intracavity, and the other end of shunt passes the first breach that corresponds with binding post and stretches into its wiring intracavity.

2. An electricity meter facilitating installation of a current divider as claimed in claim 1, wherein: the length of the shunt extending into the terminal is at least one half of the overall width of the terminal.

3. An electricity meter facilitating installation of a current divider as claimed in claim 1 or claim 2, wherein: the first notch penetrates through the side face of the wiring terminal.

4. An electricity meter facilitating installation of a current divider as claimed in claim 1, wherein: still include wiring assembly, the last fixed chamber that is equipped with a plurality of and binding post adaptation that is equipped with of wiring assembly is equipped with the second breach on the fixed chamber side towards corresponding fixed chamber, and the shunt passes second breach, first breach in proper order.

5. An electricity meter facilitating installation of a current divider as claimed in claim 4, wherein: the wiring assembly is provided with a bottom plate, and the bottom plate and the wiring assembly are matched to seal the fixed cavity.

6. An electricity meter facilitating installation of a current divider as claimed in claim 5, wherein: the wiring assembly is provided with a clamping groove, the bottom plate is provided with a buckle, and the buckle extends into the clamping groove to be fixed.

7. An electricity meter facilitating installation of a current divider as claimed in claim 4, wherein: the connecting component is provided with a second fastening hole on one side facing the shell, and the bolt penetrates through the shell and is fixedly connected with the second fastening hole.

8. An electricity meter facilitating installation of a current divider as claimed in claim 7, wherein: the wiring assembly is provided with a plurality of first positioning ribs on one side facing the shell.

9. An electricity meter facilitating installation of a current divider as claimed in claim 4, wherein: the wiring assembly further comprises a first sealing cover, and a lead sealing hole and a lead sealing part are arranged on the first sealing cover.

10. An electricity meter facilitating installation of a current divider as claimed in claim 9, wherein: the wiring assembly is characterized by further comprising an upper cover, a third notch is formed in the first sealing cover, a fixing hole is formed in the wiring assembly, and the bolt penetrates through the upper cover and the third notch to be fixedly connected with the fixing hole.