CN202178135U

CN202178135U - Coil device

Info

Publication number: CN202178135U
Application number: CN2011200536364U
Authority: CN
Inventors: 佩尔蒂·塞韦基维; 马尔库·塔利亚
Original assignee: ABB AB
Current assignee: ABB Technology AG
Priority date: 2010-03-01
Filing date: 2011-02-25
Publication date: 2012-03-28
Anticipated expiration: 2021-02-25
Also published as: EP2363866A1; DE202011000378U1; FIU20110073U0; FI9188U1

Abstract

The utility model relates to a coil device for electronic equipment. The coil device comprises a core, a coil (7) and a cooling element (1), wherein the coil is arranged around the core, and the cooling element comprises an inlet (2) for receiving cooling fluid and an outlet (3) for transferring the cooling fluid from the cooling element (1). In order to obtain a fully-cooled high-efficiency coil device, the core comprises at least two first core elements (6) which are mutually spaced for a certain distance, and the cooling element (1) is arranged between the at least two first core elements (6).

Description

Coil device

Technical field

The utility model relates to the coil device of electronic equipment, relates in particular to the solution that is used to cool off this coil device.

Background technology

The heat load that in the coil of electronic equipment, generates maybe be bigger.Temperature for fear of coil rises De Taigao, has such prior art solution: cooling element is arranged to coil and is connected.This cooling element comprises: be used to receive the inlet of cooling fluid and be used for passing on the outlet of cooling fluid from said cooling element.Thereby the heat that is generated by coil is passed to cooling fluid.

Yet above-mentioned prior art solutions is complicated, and in addition, it can not provide sufficient cooling to all realizations.

The utility model content

The purpose of the utility model provides a kind of novelty, has a coil device of enough coolings efficiently.

In an embodiment of the utility model; A kind of coil device that is used for electronic equipment comprises: at least two cooling elements of distance ground location are arranged each other, and this cooling element comprises and is used to receive the inlet of cooling fluid and is used for passing on the outlet of cooling fluid from cooling element; At least two first core elements; Be arranged on the opposite side of each corresponding cooling element, and, it is characterized in that around at least one coil that each corresponding two first core element and corresponding cooling element are arranged; Coil device comprises: at least two second core elements on each side of cooling element, second core element extends between at least two cooling elements.

Coil device can be the coil device that is used for choke or transformer.

First core element can be ferrimagnet or ferrite material.

Coil device can be the coil device of choke in the frequency converter.

In the cooling element at least one can comprise a plurality of conduits, and this conduit can be provided for fluid is sent to from inlet the parallel fluid path of outlet.

Between two first core elements, utilize cooling element to make to obtain the scheme simply and efficiently of the core that is used for the cooling coil device.By this way, the temperature of control coil device efficiently.

Description of drawings

Below, also the utility model is described in greater detail with reference to the attached drawings with the mode of example, in the accompanying drawings,

Fig. 1 illustrates the cooling element of the embodiment that is used for coil device to Fig. 3,

Fig. 4 illustrates first embodiment of coil device to Fig. 5, and

Fig. 6 and Fig. 7 illustrate second embodiment of coil device.

Embodiment

Fig. 1 illustrates the cooling element 1 of the embodiment that is used for coil device to Fig. 3.Fig. 1 and Fig. 2 illustrate the front view and the end view of cooling element 1, and Fig. 3 is the cross section of cooling element along the line III-III among Fig. 1.

In the embodiment shown, cooling element 1 comprises: inlet 2, outlet 3, and provide parallel fluid path fluid is sent to a plurality of conduits 4 of said outlet 3 from said inlet 2.Term " parallel fluid path " does not need all conduits parallel exactly, although possibly be this situation in many realizations, yet that conduit 4 is provided for fluid is just enough from the alternative fluid path that inlet is sent to outlet.Yet, should not observe and need in all are realized, use cooling element with parallel fluid path.On the contrary, in some were realized, it possibly be favourable using the cooling element that between entrance and exit, only has an independent fluid path.

In the embodiment shown, conduit 4 is connected to each other with the tube portion 5 at place, the opposite end of cooling element 1, to provide conduit 4 to entering the mouth 2 and export the fluid path between 3 respectively.For example, can be manufactured from aluminium cooling element 1, and it can relative thin, this has can remain the width of coil device less advantage.

Fig. 4 illustrates first embodiment of coil device to Fig. 5.In Fig. 4 and Fig. 5, suppose the cooling element of use Fig. 1 to Fig. 3 with the mode of example.Shown coil device can be the choke that for example is used for such as the electronic equipment of frequency converter.

In Fig. 4 and Fig. 5, two first core elements 6 are disposed on the opposite side of cooling element 1.First core element can for example be ferrimagnet or ferrite material.Each first core element can be discrete component or be made up of a plurality of thinner elements (like plate) that are arranged in each other on the top.

Outermost at Fig. 4 and Fig. 5 is a coil 7.This coil 7 is arranged to around the cooling element 1 and first core element 6.Coil can be by forming with the electric conductor (such as lead) that some circles twine around the cooling element 1 and first core element 6.Alternately, coil 7 can be made up of band or plate.

In Fig. 4 and Fig. 5, can see cooling element 1 at two ends (following with more than)

cross coil

7 and 6 extensions of first core element.By this way; Can easily visit the inlet 2 and outlet 3 of cooling element 1; Install to carry out necessary pipe,, before introducing cooling element 1 again, cool off this cooling fluid at this external equipment place cooling fluid be sent to external equipment and send back from external equipment.

Fig. 6 and Fig. 7 illustrate second embodiment of coil device.Fig. 6 is that end-view and Fig. 7 of coil device is its end view.The embodiment of Fig. 6 and Fig. 7 with combine the described embodiment of Fig. 4 and Fig. 5 closely similar, therefore mainly through pointing out that the difference between these embodiment explains this embodiment.

In the embodiment of Fig. 6 and Fig. 7, use three pairs of cooling elements 1.Every pair of cooling element comprises first core element 6 that is arranged between two cooling elements 1, and each outer surface that second and the three the first core elements 6 are leaning on cooling element 1 is arranged.At last, for every pair of cooling element 1 and three corresponding first core elements 6, coil 7 is arranged to around two cooling elements 1 and three first core elements 6.

The embodiment of Fig. 6 and Fig. 7 also is included in three second core elements 8 that extend between all three pairs of cooling elements 1.

Suppose that with the mode of example coil device is the coil device that is used for choke above.Selectively, this coil device can be the coil device that is used for transformer.

It is to be understood that above explanation and accompanying drawing only are intended to illustration the utility model.To those skilled in the art, apparently, under the situation of the scope that does not break away from the utility model, can change and revise the utility model.

Claims

1. coil device that is used for electronic equipment comprises:

At least two cooling elements (1) that distance ground location is arranged each other, said cooling element comprise the inlet (2) that is used to receive cooling fluid and are used for passing on the outlet (3) of said cooling fluid from said cooling element (1),

At least two first core elements (6) are arranged on the opposite side of each corresponding cooling element (1), and

At least one coil (7) around each corresponding two first core element (6) and corresponding cooling element (1) layout is characterized in that said coil device comprises:

At least two second core elements (8) on each side of said cooling element (1), said second core element (8) extend at least between said two cooling elements (1).

2. coil device according to claim 1 is characterized in that, said coil device is the coil device that is used for choke or transformer.

3. coil device according to claim 1 is characterized in that, said first core element is ferrimagnet or ferrite material.

4. coil device according to claim 1 is characterized in that, said coil device is the coil device of choke in the frequency converter.

5. coil device according to claim 1; It is characterized in that; In the said cooling element (1) at least one comprises a plurality of conduits (4), and said conduit (4) is provided for said fluid is sent to from said inlet (2) the parallel fluid path of said outlet (3).