CN206758469U

CN206758469U - A kind of motor Hall element

Info

Publication number: CN206758469U
Application number: CN201720648009.2U
Authority: CN
Inventors: 张波
Original assignee: Individual
Current assignee: Individual
Priority date: 2017-06-06
Filing date: 2017-06-06
Publication date: 2017-12-15
Anticipated expiration: 2027-06-06

Abstract

The utility model provides a kind of motor Hall element, chip, several pins being connected with chip including plastic-sealed body, in plastic-sealed body, the pin extends plastic-sealed body, portion is conformed with least one pin, in in plastic-sealed body, the plastic-sealed body lengthwise is 3.25mm 9mm for the protruding part.By the way that plastic-sealed body lengthwise is arranged into 3.25mm 9mm, jut is set so as on the one hand leave space inside plastic-sealed body for pin, improves the stress of pin；On the other hand prevent pin from contact with the iron core on motor or apart from closely causing very much to leak electricity, improve the security that Hall element uses and the reliability that motor insulate.

Description

A kind of motor Hall element

Technical field

It the utility model is related to electronic component technology field, more particularly to a kind of motor Hall element.

Background technology

Hall element generally comprises plastic-sealed body, the chip in plastic-sealed body, pin for being connected with chip etc..Pin is usual It is pre-welded on wiring board, plastic-sealed body is then inserted in the groove that motor upper core is formed.In the art, plastic-sealed body lengthwise 3.0mm-3.24mm is usually arranged as, this is also a kind of parameter value sanctified by usage.In Hall element in actual use, by In pin and iron core apart from close, easily cause electric leakage, so as to cause Hall element to burn or cause motor electric leakage to cause to insulate It is bad.In the prior art, there is provided the method for two kinds of solution Hall element Insulation Problems, one of which is to put iron fluorine for pin Imperial insulation tube, but gap between Teflon insulation tube and plastic-sealed body still be present, pin can also touch iron core or from iron Core is closer to the distance, can not effectively solve electrical leakage problems, and another is that a suitable plastic stent is first covered on pin, then Teflon insulation tube is put on pin, although such a method has more preferable effect, plastic stent and modeling than above a kind of Between envelope body, gap between Teflon insulation tube and plastic stent be present, the distance of pin and iron core is still relatively near, still without Method effectively solves electrical leakage problems.In addition, Hall element, in installation process, pin needs to be bent, and pin angle folding is not Very big stress can be produced well, can hurt chip, and the metal wire for causing to connect chip and pin is fallen off or rosin joint, influences The security that Hall element uses.

In view of this, it is necessary to motor Hall element of the prior art is improved, to solve the above problems.

Utility model content

The purpose of this utility model is to disclose a kind of motor Hall element, to one side to draw inside plastic-sealed body Pin leaves space and sets jut, improves the stress of pin；On the other hand prevent pin contacted with the iron core on motor or away from From closely causing very much to leak electricity, security that Hall element uses and the reliability of motor insulation are improved.

To achieve the above object, the utility model provides a kind of motor Hall element, including plastic-sealed body, positioned at plastic packaging Chip, several pins being connected with chip in body, the pin extend plastic-sealed body, are conformed with least one pin Portion, in plastic-sealed body, the plastic-sealed body lengthwise is 3.25mm-9mm for the protruding part.

In some embodiments, the jut and pin intersection are formed with the radian bent towards pin direction.

In some embodiments, the number of the pin is three i.e. the first pin, second pin and the 3rd pin.

In some embodiments, in addition to the second framework, the first framework and the 3rd frame that are arranged in the second framework both sides Frame, first pin are fixed on the first framework, and the chip is fixed on the second framework, and the 3rd pin is fixed on On three frameworks.

In some embodiments, in addition to metal wire, the second pin are directly connected to chip, first pin It is connected respectively with chip by metal wire with the 3rd pin.

In some embodiments, it is equipped with jut on first pin, second pin and the 3rd pin, described Jut volume on one pin and the 3rd pin is more than the jut volume in second pin.

In some embodiments, the plastic-sealed body lengthwise is 4.7mm.

In some embodiments, the plastic-sealed body includes upper plastic-sealed body and lower plastic-sealed body, and the chip is located at lower plastic packaging In body.

Compared with prior art, the beneficial effects of the utility model are：By the way that plastic-sealed body lengthwise is arranged into 3.25mm- 9mm, jut is set so as on the one hand leave space inside plastic-sealed body for pin, improves the stress of pin；On the other hand Prevent that pin from contacting with the iron core on motor or distance closely causes very much to leak electricity, improve security and electricity that Hall element uses The reliability of machine insulation.

Brief description of the drawings

Fig. 1 is a kind of overall structure diagram of motor Hall element shown in the utility model；

Fig. 2 is a kind of internal structure schematic diagram of motor Hall element shown in the utility model.

Embodiment

The utility model is described in detail shown each embodiment below in conjunction with the accompanying drawings, but it should explanation, These embodiments are not limitation of the utility model, and those of ordinary skill in the art are according to these embodiment institute works Energy, method or equivalent transformation or replacement in structure, are belonged within the scope of protection of the utility model.

A kind of motor Hall element as illustrated in fig. 1 and 2, if including plastic-sealed body 1, the chip 8 in plastic-sealed body 1, The dry pin being connected with chip 8.In the present embodiment, the number of pin is three i.e. the first pin 2, second pin 3 and the Three pins 4.The plastic-sealed body 1 includes upper plastic-sealed body 11 and lower plastic-sealed body 12, and the chip 8 is located in lower plastic-sealed body 12.

Also include the second framework 6, be arranged in the first framework 5 and the 3rd framework 7 of the both sides of the second framework 6, described first draws Pin 2 is fixed on the first framework 5, and the chip 8 is fixed on the second framework 6, and the 3rd pin 4 is fixed on the 3rd framework 7 On.

Also include metal wire 91 and metal wire 92, the second pin 3 is directly connected to chip 8, first pin 2 with Chip 8 is connected by metal wire 91, and the 3rd pin 4 is connected with chip 8 by metal wire 92.

When mounted, the first pin 2, the pin 4 of second pin 3 and the 3rd are pre-welded to wiring board (not to the Hall element Show) on, plastic-sealed body 1 is inserted in the groove that motor upper core (not shown) is formed, during subsequent installation, the first pin 2, The pin 4 of second pin 3 and the 3rd needs to bend.

First pin 2, the pin 4 of second pin 3 and the 3rd extend lower plastic-sealed body 12.First pin 2 is provided with some Individual jut 21, second pin 3 are provided with several juts 31, and the 3rd pin 4 is provided with several juts 41, in this reality Apply in example, jut 21, the number of jut 31 and jut 41 is one, so as to add the first pin 2, second pin 3 and the 3rd pin 4 stress, prevent the first pin 2, the pin 4 of second pin 3 and the 3rd from causing metal wire 91 in BENDING PROCESS Come off with metal wire 92, ultimately result in Hall element and burn.Certainly, jut 21 and jut 41 also can be only set to omit projection Portion 31.

Jut 21, jut 31 and jut 41 are respectively positioned on inside lower plastic-sealed body 12.Due to second pin 3 and chip 8 It is directly connected to, second pin 3 is higher relative to the connection fastness of the first pin 2 and the 3rd pin 4 and chip 8, thus makes projection The volume of portion 21 and jut 41 is all higher than the volume of jut 31.

The intersection of 21 and first pin of jut 2 formed with the radian bent towards the direction of the first pin 2, jut 31 with The intersection of second pin 3 is formed with the radian bent towards the direction of second pin 3, jut 41 and the intersection shape of the 3rd pin 4 Into the radian having towards the bending of the direction of the 3rd pin 4, so as to further increase the first pin 2, the pin 4 of second pin 3 and the 3rd Stress.The radian size is 0 ° -90 °.

The longitudinal length X of the plastic-sealed body 1 is 3.25mm-9mm, is on the one hand the first pin 2, second pin 3 and the 3rd Pin 4 leaves space and sets jut 21, jut 31 and jut 41, on the other hand prevents the first pin 2, second pin 3 Being contacted with the 3rd pin 4 with the iron core on motor causes to leak electricity.In the art, the longitudinal length X of traditional plastic-sealed body 1 Custom is arranged on 3.0mm-3.24mm, causes the inner space of plastic-sealed body 1 smaller, can not be in the first pin 2, second pin 3 and the Jut 21, jut 31 and jut 41 are set respectively on three pins 4, in addition, the first pin 2, second pin 3 and the 3rd are drawn Pin 4 easily contacts with the iron core on motor or close to causing to leak electricity.Thus, the longitudinal length X of plastic-sealed body 1 is arranged to 3.25mm-9mm, technology prejudice is overcome in a sense.In the present embodiment, the longitudinal length X of plastic-sealed body 1 is preferably 4.7mm, it is cost-effective so as to which the effect above and can be reached.

The a series of tool described in detail only for feasibility embodiment of the present utility model of those listed above Body illustrates that they are simultaneously not used to limit the scope of protection of the utility model, all to be made without departing from the utility model skill spirit Equivalent implementations or change should be included within the scope of protection of the utility model.

Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art It is appreciated that other embodiment.

Claims

1. a kind of motor Hall element, it is characterised in that chip including plastic-sealed body, in plastic-sealed body, several and core The pin of piece connection, the pin extend plastic-sealed body, portion are conformed with least one pin, the protruding part is in plastic packaging In vivo, the plastic-sealed body lengthwise is 3.25mm-9mm.

2. motor Hall element according to claim 1, it is characterised in that the jut is formed with pin intersection There is the radian towards the bending of pin direction.

3. motor Hall element according to claim 2, it is characterised in that the number of the pin is three i.e. first Pin, second pin and the 3rd pin.

4. motor Hall element according to claim 3, it is characterised in that also including the second framework, be arranged in second The first framework and the 3rd framework of framework both sides, first pin are fixed on the first framework, and the chip is fixed on second On framework, the 3rd pin is fixed on the 3rd framework.

5. motor Hall element according to claim 4, it is characterised in that also including metal wire, the second pin It is directly connected to chip, first pin and the 3rd pin are connected with chip by metal wire respectively.

6. motor Hall element according to claim 5, it is characterised in that first pin, second pin and It is equipped with jut on three pins, the jut volume on first pin and the 3rd pin is more than the projection in second pin Portion's volume.

7. motor Hall element according to claim 1, it is characterised in that the plastic-sealed body lengthwise is 4.7mm.

8. motor Hall element according to claim 1, it is characterised in that the plastic-sealed body includes upper plastic-sealed body with Plastic-sealed body, the chip are located in lower plastic-sealed body.