CN204903619U - Current sensor's novel shell structure - Google Patents

Abstract

The utility model provides a current sensor's novel shell structure, it includes box body and lid, box body bottom center is protruding to be equipped with one and to insert a section of thick bamboo, the box body bottom lies in the protruding coaxial annular boss that is equipped with of footpath peripherad of inserting a section of thick bamboo, the box body bottom lies in the fixed protruding a plurality of location strengthening rib that is equipped with of footpath peripherad of annular boss, a plurality of location strengthening ribs and annular boss and insert between the section of thick bamboo around going out a ray of circle constant head tank, the slot has been seted up on the lateral wall of wherein two mutual correspondences of box body respectively, the bottom of box body lies in the PCB board and inserts to establish to fix between regional and the annular boss and be provided with one and be used for the card to establish hall element's U -shaped truss, it has seted up two at least location jacks on the terminal surface of oral area to correspond on the lateral wall of box body, insert the post with the protruding location that is equipped with mutual matching in position of two at least location jack one -to -ones on the lid.

Description

The novel housing structure of current sensor

Technical field

The utility model relates to the encapsulating structure field of electron device, particularly a kind of novel housing structure of current sensor.

Background technology

Current sensor is a kind of application electronic component very widely, and it is widely used in the automatic control field using electric current as control object such as welding gear, frequency converter and various power supplys.

Current sensor measures based on hall principle the electronic component needing the various current signals detected, surface band glue and surface can be divided into not to be with two kinds, glue from classifying in appearance, the current sensor of surface band glue adds glue process in manufacturing process, and glue must be guaranteed drying time, thus production efficiency is caused to reduce; The current sensor inner structure of surface not with glue is loose, generally all only by the coil of inside, wiring board simplified package in the enclosure, and corresponding fixing is installed screens or is only fixed wherein some so that encapsulation, this loose inner structure cause this current sensor in use between long after, understand because carrying movement, external force vibration etc. reason causes internal component to depart from reference position, easily cause the electric connection structure between internal component impaired, thus reduce the reliability of current sensor.

Utility model content

The purpose of this utility model is the novel housing structure providing a kind of current sensor, its technical matters to be solved is: traditional current sensor internal enclosing structure is loose, each part does not fixedly mount screens accordingly, and then understand because movement, stressed vibrations etc. reason causes inner body relative shift, electric connection structure damaged between even each components and parts, its serviceable life is restricted, reduces the dependability of current sensor.

For solving the problems of the technologies described above, the utility model provides a kind of novel housing structure of current sensor, it comprises box body and lid, described lid can be combined in the oral area of described box body by fixed cap, described box body bottom centre position is convexly equipped with an insertion tube, the footpath being positioned at described insertion tube bottom described box body is convexly equipped with a coaxial annular boss towards periphery, the footpath being positioned at annular boss bottom described box body is fixedly convexly equipped with some location reinforcement towards periphery, around a coil location groove between described some location reinforcement and annular boss and insertion tube, wherein two mutual corresponding sidewalls of described box body offer slot respectively, the notch of described two slots is mutually corresponding plugs region around a square pcb board, the bottom of described box body plugs at described pcb board and to be fixedly installed one to establish Hall element U-lag frame for card between region and annular boss, the two ends of the U-lag on described U-lag frame respectively corresponding described pcb board plug region and annular boss, on the sidewall of described box body corresponding oral area end face on offer at least two positioning jacks, described lid is convexly equipped with the location inserting column mutually mated in position one to one with described at least two positioning jacks.

Be preferable over: on annular boss bottom the internal ring wall of radial direction and external annulus and described box body between be provided with some reinforced ribs.

Be preferable over: described some described location reinforcement is all in arc shape, and the radius of described some described location reinforcement in arc shape is identical and coaxially arrange, all be connected with fixing reinforcement between described some described location reinforcements in arc shape and the madial wall of described box body, the bottom side of described fixing reinforcement is also fixedly connected with the bottom of described box body.

Have precedence over: in two described slots, the bottom land of any one slot offers the slotted eye running through described box side wall, the pin on described pcb board can be protruding through described slotted eye.

Compared with prior art, the beneficial effects of the utility model are:

One, utilize between described some location reinforcement and annular boss and insertion tube around a coil location groove, region is plugged around a square pcb board by the notch of two slots is mutually corresponding, and plug at described pcb board in the bottom of described box body and between region and annular boss, to be fixedly installed one to establish Hall element U-lag frame for card, and then can to the internal component pcb board forming current sensor, coil and Hall element form retaining structure one to one, thus ensure that the installation stability between the inner each components and parts of current sensor, effectively can improve serviceable life and the reliability of product,

Two, the annular boss in described box body is established except described coil except may be used for location holder, form stronger stress support can also to the bottom of box body, that box body bottom stress performance gets a promotion, the some location reinforcement be arranged on around described annular boss can realize the radial location to coil, can also coordinate with fixing reinforcement and strengthen the sidewall of described box body and the effect of bottom, improve the stress performance of described box body further;

Three, between box body with lid, arrange at least two to the positioning jack mutually mate and location inserting column, also can increase described lid while realization enables described lid be fastened on described box body more accurately and coordinate compactedness between box body.

Four, the inner structure of shell of the present utility model seems complicated, actual simple, and be easy to mould production, also be easy to assembling product produce, described tray interior correspondence position is put into after only PCB, coil and Hall element need being assembled, as long as and any part inserts in corresponding fixed position in assembling process, other two part also can insert corresponding position simultaneously, and fitting tight, can not rock in box body, assembling product is produced simple, can simplify production technology, enhance productivity greatly.

Accompanying drawing explanation

Fig. 1 is one-piece construction perspective exploded view of the present utility model.

Fig. 2 is box body structure schematic top plan view of the present utility model.

Fig. 3 is one-piece construction of the present utility model assembling schematic diagram.

Fig. 4 is assembly structure schematic diagram in box body of the present utility model.

Embodiment

Below with reference to accompanying drawing 1-4 and preferred embodiment, the novel housing structure to a kind of current sensor that the utility model proposes specifically illustrates.

The utility model provides a kind of novel housing structure of current sensor, it comprises box body 1 and lid 2, described lid 2 is by Fig. 1, (this is conventional buckle structure to buckle structure shown in 3, no further details to be given herein, can be used as optimal way) fixed cap is combined in the oral area of described box body 1, described box body 1 bottom centre position is convexly equipped with an insertion tube 11, the footpath being positioned at described insertion tube 11 bottom described box body 1 is convexly equipped with a coaxial annular boss 12 towards periphery, the footpath being positioned at annular boss 12 bottom described box body 1 is fixedly convexly equipped with some location reinforcement 13 towards periphery, described some location reinforcement 13 and insertion tube 11 are all higher than described annular boss 12, around a coil location groove between described some location reinforcement 13 and annular boss 12 and insertion tube 11, the coil a of the ring-type in current sensor can radial location be embedded in described coil location groove, wherein two mutual corresponding sidewalls of described box body 1 offer slot 14 respectively, the notch of described two slots 14 is mutually corresponding plugs region around a square pcb board that can be used for the pcb board b fixedly plugged in current sensor, two corresponding plug-in cards of sides difference of described pcb board b are in two described slots 14, the bottom of described box body 1 plugs at described pcb board and to be fixedly installed one to establish Hall element U-lag frame 15 for card between region and annular boss 12, the two ends of the U-lag 151 on described U-lag frame 15 respectively corresponding described pcb board plug region and annular boss 12, and then when described coil a is embedded in described coil location groove, described pcb board b is plugged in described pcb board and plugs region, described Hall element c is embedded in described U-lag 151, described Hall element c can be electrically connected with pcb board and coil a respectively by the two ends of described U-lag 151, described Hall element c can being divided in practical set process is electrically connected with pcb board and coil a connects, and then correspondence put on above-mentioned each self-corresponding fixed installation position, assembling is simple, and locate solid and reliable, on the sidewall of described box body 1 corresponding oral area end face on offer at least two positioning jacks 16, described lid 2 is convexly equipped with the location inserting column 21 mutually mated in position one to one with described at least two positioning jacks 16, wherein, described positioning jack 16 can be diameter with location inserting column 21, the length circular port, the post that mutually mate.

Further, on annular boss 12 bottom the internal ring wall of radial direction and external annulus and described box body 1 between be provided with some reinforced ribs 121, while utilizing described some reinforced ribs 121 to improve the bottom stress performance of described box body 1, also radial direction has widened the area of described annular boss 12 for coil a described in support.

Wherein, described some described location reinforcement 13 is all in arc shape, and the radius of described some described location reinforcement 13 in arc shape is identical and coaxially arrange, some location reinforcement 13 of arc shape coaxially arranges and surrounds into border circular areas, realizes the radial outside location block to coil a; Fixing reinforcement 17 is all connected with between described some described location reinforcement 13 in arc shape and the madial wall of described box body 1, the bottom side of described fixing reinforcement 17 is also fixedly connected with the bottom of described box body 1, described fixing reinforcement 17 is utilized to provide radial anchorage force for described location reinforcement 13, also consolidate the supporting relation between the sidewall of described box body 1 and bottom, enhance the stress performance of described box body 1.

In addition, in two described slots 14, the bottom land of any one slot 14 offers the slotted eye 141 running through described box body 1 sidewall, and the pin b1 on described pcb board b can be protruding through described slotted eye 141.

Described on comprehensive, the technical solution of the utility model fully effectively can complete above-mentioned utility model object, and structural principle of the present utility model and the principle of work and power are all verified in an embodiment fully, and effect and the object of expection can be reached, and embodiment of the present utility model also can convert according to these principles, therefore, the utility model comprise all in claim mention all replacement contents in scope.Any equivalence change done in the utility model claim, within the scope of the claims of all genus this case applications.

Claims (4)

1. the novel housing structure of a current sensor, it is characterized in that: comprise box body and lid, described lid can be combined in the oral area of described box body by fixed cap, described box body bottom centre position is convexly equipped with an insertion tube, the footpath being positioned at described insertion tube bottom described box body is convexly equipped with a coaxial annular boss towards periphery, the footpath being positioned at annular boss bottom described box body is fixedly convexly equipped with some location reinforcement towards periphery, around a coil location groove between described some location reinforcement and annular boss and insertion tube, wherein two mutual corresponding sidewalls of described box body offer slot respectively, the notch of described two slots is mutually corresponding plugs region around a square pcb board, the bottom of described box body plugs at described pcb board and to be fixedly installed one to establish Hall element U-lag frame for card between region and annular boss, the two ends of the U-lag on described U-lag frame respectively corresponding described pcb board plug region and annular boss, on the sidewall of described box body corresponding oral area end face on offer at least two positioning jacks, described lid is convexly equipped with the location inserting column mutually mated in position one to one with described at least two positioning jacks.

2. the novel housing structure of current sensor as claimed in claim 1, is characterized in that: on annular boss bottom the internal ring wall of radial direction and external annulus and described box body between be provided with some reinforced ribs.

3. the novel housing structure of current sensor as claimed in claim 2, it is characterized in that: described some described location reinforcement is all in arc shape, and the radius of described some described location reinforcement in arc shape is identical and coaxially arrange, all be connected with fixing reinforcement between described some described location reinforcements in arc shape and the madial wall of described box body, the bottom side of described fixing reinforcement is also fixedly connected with the bottom of described box body.

4. the novel housing structure of current sensor as claimed in claim 3, is characterized in that: in two described slots, the bottom land of any one slot offers the slotted eye running through described box side wall, and the pin on described pcb board can be protruding through described slotted eye.