CN204390880U - Drum stand and the magnetic element applying this drum stand - Google Patents

Abstract

This creation discloses a kind of drum stand and the magnetic element applying this drum stand, and this drum stand comprises cylinder and dividing plate.Cylinder has cartridge outer surface.Dividing plate stands on cartridge outer surface, jointly defines winding space between dividing plate and cartridge outer surface in order to cartridge outer surface.Coil is set around in winding space.Dividing plate has passage of heat, and passage of heat exposes at least part of coil, makes heat-conducting medium can by passage of heat thermo-contact coil.The drum stand of this creation has passage of heat.Therefore, heat-conducting medium can pass through passage of heat directly thermo-contact coil, and the heat that coil is emitted guides to housing by heat-conducting medium rapidly via heat transfer.Therefore, the drum stand of this creation has good heat-sinking capability.

Description

Drum stand and the magnetic element applying this drum stand

Technical field

This creation have about a kind of magnetic element drum stand and application this drum stand a kind of magnetic element.

Background technology

The shortage of our times petroleum resources, global warming situation is urgent, and countries in the world drop into the ranks of electric vehicle development one after another.Electric automobile is in driving process, and its power supply equipment can produce high temperature, and the magnetic element in power supply equipment is especially easily subject to the impact of high temperature.

Because the drum stand of magnetic element is in order to support and protect coil, therefore in the design of structure to gain in strength, the function of heat radiation can be sacrificed unavoidably, cause magnetic element dispel the heat on problem.

Therefore, how to design a kind of drum stand, there is the structure that heat radiation is good, become important topic.

Utility model content

This creation one side be the drum stand that a kind of magnetic element is provided, it has good radiator structure, to solve the above problems.

According to an execution mode of this creation, a kind of drum stand comprises cylinder and dividing plate.Cylinder has cartridge outer surface.Dividing plate stands on cartridge outer surface, jointly defines winding space between dividing plate and cartridge outer surface in order to cartridge outer surface.Coil is set around in winding space.Dividing plate has passage of heat, and passage of heat exposes at least part of coil, makes heat-conducting medium can by passage of heat thermo-contact coil.

Create in one or more execution mode at this, dividing plate has the separator edge relative to cartridge outer surface.Coil has the coil outer surface relative to cartridge outer surface.Distance between at least part of coil outer surface and cartridge outer surface, is greater than the distance between separator edge and cartridge outer surface, and passage of heat is present between coil outer surface and separator edge.

Create in one or more execution mode at this, dividing plate tool two separator edge.Separator edge is flat surface.

Create in one or more execution mode at this, dividing plate comprises support portion.Coil has the coil outer surface relative to cartridge outer surface.Support portion has the edge, support portion relative to cartridge outer surface.Distance between edge, support portion and cartridge outer surface, is more than or equal to the distance between coil outer surface and cartridge outer surface.

Create in one or more execution mode at this, dividing plate has more line groove, and the wire going out the electron-donating connecting coil of line groove passes through.

Create in one or more execution mode at this, go out line groove and be recessed to cartridge outer surface.

Create in one or more execution mode at this, passage of heat is the hole in dividing plate.

Create in one or more execution mode at this, dividing plate also comprises support, and support is across passage of heat.

Create in one or more execution mode at this, the quantity across the support of each passage of heat is multiple.

Create in one or more execution mode at this, the quantity of passage of heat is multiple.

Create in one or more execution mode at this, the wire being electrically connected coil does not pass through passage of heat.

According to an execution mode of this creation, a kind of magnetic element comprises magnetic core, cylinder and dividing plate.Magnetic core has a lateral column, and cylinder has cartridge outer surface.Dividing plate stands on cartridge outer surface, jointly defines winding space between dividing plate and cartridge outer surface in order to cartridge outer surface.Coil is set around in winding space.Dividing plate has passage of heat, and passage of heat exposes at least part of coil, makes heat-conducting medium can by passage of heat thermo-contact coil, and wherein passage of heat is positioned at the part of separator face to lateral column.

Create in one or more execution mode at this, lateral column is arc, circular, square, rectangle, trapezoidal, oval, random geometry or more at least any two combined shaped.

In sum, the drum stand of this creation has passage of heat.Therefore, heat-conducting medium can pass through passage of heat directly thermo-contact coil, and the heat that coil is emitted guides to housing by heat-conducting medium rapidly via heat transfer.Therefore, the drum stand of this creation has good heat-sinking capability.

Accompanying drawing explanation

Fig. 1 illustrates the assembling stereogram of the magnetic element creating an execution mode according to this.

Fig. 2 illustrates the explosive view of the magnetic element of Fig. 1.

Fig. 3 illustrates the profile of the line segment 3-3 ' along Fig. 1.

Fig. 4 illustrates the profile of the line segment 4-4 ' along Fig. 1.

Fig. 5 illustrates the profile of the magnetic element creating another execution mode according to this.

Fig. 6 illustrates the stereogram of first magnetic core of Fig. 2.

Fig. 7 illustrates that the upper cover of Fig. 2 and the group of binding post are stood to scheme.

Fig. 8 illustrates the upper cover of Fig. 7 and the explosive view of binding post.

Fig. 9 illustrates the drum stand of Fig. 2 and the stereogram of coil.

Figure 10 illustrates the drum stand of Fig. 2 and the stereogram of coil.

Figure 11 illustrates the profile of the line segment 11-11 ' along Fig. 9.

Figure 12 illustrates and creates the drum stand of another execution mode and the profile of coil according to this.

Figure 13 illustrates according to this creation drum stand of an execution mode and profile of coil again.

Wherein, description of reference numerals is as follows:

100: magnetic element

110: housing

112: side

114: bottom surface

116: space

118: detent

120: drum stand

122: cylinder

124: cartridge outer surface

126: butting section

128: boss

130: dividing plate

132: winding space

134: passage of heat

136: separator edge

138: ribs

140: support portion

142: edge, support portion

144: go out line groove

146: support

150: coil

151: part

152: coil outer surface

154: first siding ring

156: second siding ring

158: wire

159: insulating tape

160: the first magnetic cores

162: center pillar

164: lateral column

165: the second magnetic cores

166: connecting portion

168: cylinder

170: heat-conducting glue

172: liquid level

180: upper cover

182: first surface

183: the first clamping parts

184: second surface

185: the second clamping parts

186: nut groove

187: nut

188: screw

190: binding post

192: the three clamping parts

194: the four clamping parts

196: through hole

210: winding space

211: the first winding spaces

213: the second winding spaces

215: the three winding spaces

217: heat conduction space

D1: first direction

D2: second direction

D3: third direction

D1: gap

D2: gap

L: spacing

3-3 ': line segment

4-4 ': line segment

11-11 ': line segment

Embodiment

Below by with multiple execution modes of graphic this creation of exposure, as clearly stated, the details in many practices will be explained in the following description.But should be appreciated that, the details in these practices is not applied to limit this creation.That is, in this creation some embodiments, the details in these practices is non-essential.In addition, for the purpose of simplicity of illustration, some know usual structure and element illustrates in the mode simply illustrated in the drawings.

Fig. 1 illustrates the assembling stereogram of the magnetic element 100 creating an execution mode according to this.Fig. 2 illustrates the explosive view of the magnetic element 100 of Fig. 1.Fig. 3 illustrates the profile of the line segment 3-3 ' along Fig. 1.

As shown in Figures 1 to 3, in present embodiment, magnetic element 100 comprises housing 110, drum stand 120, coil 150 and the first magnetic core 160.Housing 110 has side 112 and bottom surface 114.Bottom surface 114 is stood in side 112, and and bottom surface 114 jointly form space 116 between side 112 and bottom surface 114.Drum stand 120 is positioned at space 116 at least partly.Drum stand 120 has cylinder 122.Coil 150 is set around the cylinder 122 of drum stand 120.Coil 150 has the part 151 in the face of bottom surface 114.In present embodiment, it is outer in order to fixed coil 150 in it that coil 150 also comprises insulating tape 159.First magnetic core 160 comprises center pillar 162, lateral column 164 and connecting portion 166.Center pillar 162 is arranged in cylinder 122.In the present embodiment, above-mentioned magnetic element 100 still can comprise the second magnetic core 165, first magnetic core 160 and the second magnetic core 165 can be symmetrical, and is inserted in cylinder 122 by the right and left of drum stand 120 respectively.But this creation is not limited thereto, the first magnetic core 160 and the second magnetic core 165 also can be asymmetric mutually, or one-body molded.In the present embodiment, lateral column 164 is positioned at the outside of coil 150 relative to bottom surface 114, makes coil 150 between lateral column 164 and bottom surface 114.In other embodiments, the relative position of lateral column 164 also can be selected according to requirement of engineering.Connecting portion 166 connects center pillar 162 and lateral column 164.

In the present embodiment, coil 150 part 151 in the face of bottom surface 114 not by the first magnetic core 160 and the second magnetic core 165 cover.That is, coil 150 part 151 in the face of bottom surface 114 will directly pass through heat transfer medium (scheming not illustrate) (such as air, cold oil or heat-conducting glue) and transfer heat energy to bottom surface 114.Whereby, coil 150 part in the face of bottom surface 114 can directly thermal conductance to housing 110, and by the heat abstractor (figure does not illustrate) be connected to outside housing 110, hot type to be removed.Therefore, the magnetic element 100 of present embodiment has good heat-sinking capability.

Further, due to contained by the first magnetic core 160 and the second magnetic core 165 of part 151 in the face of bottom surface 114 of coil 150, therefore when magnetic element 100 heats up because of running, even if coil 150 and heat transfer medium expand because of being heated, first magnetic core 160 and the second magnetic core 165 are also displacement at most, and can not the damaged fracture because of extruding.Therefore, the magnetic element 100 of present embodiment can effectively overcome because of the magnetic core splintering problem caused that heats up.

Should be appreciated that, although in figs. 1 to 3, part 151 not cover by any magnetic core, this does not limit this creation.In this creation some embodiments, part 151 also can cover by other magnetic cores of non-first magnetic core 160 and the second magnetic core 165.In fact, as long as magnetic core not with the first magnetic core 160 of cover part 151 is connected with the second magnetic core 165 entity, even if coil 150 expands because of being heated, the first magnetic core 160, second magnetic core 165 even magnetic core of cover part 151 is also displacement at most, and can not the damaged fracture because of extruding.

As shown in FIG. 2 and 3, in present embodiment, between drum stand 120 and lateral column 164, form gap d 1.First magnetic core 160 can be inserted in cylinder 122 by center pillar 162 to support the first magnetic core 160.Drum stand 120 also can comprise butting section 126 (see Fig. 2).Butting section 126 be positioned at drum stand 120 side and allow connecting portion 166 against.By the butting section 126 of connecting portion 166 against drum stand 120, the first magnetic core 160 can be supported, allow between the lateral column 164 of the first magnetic core 160 and drum stand 120 and form gap d 1.That is the lateral column 164 of the first magnetic core 160 is not against drum stand 120.Therefore, after drum stand 120 expanded by heating, owing to forming gap d 1 between drum stand 120 and lateral column 164, drum stand 120 can not push up lateral column 164, avoid lateral column 164 by drum stand 120 squeeze crack.In the prior art, usually wish that this gap d1 is as far as possible little of the volume reducing whole magnetic element.For avoiding lateral column 164 by drum stand 120 squeeze crack, in present embodiment, reserved larger gap d 1, as this creation gap d 1 is not less than 0.2 millimeter (mm).

As shown in Figure 3, in present embodiment, between coil 150 and lateral column 164, form gap d 2.After coil 150 expanded by heating, owing to forming gap d 2 between coil 150 and lateral column 164, therefore coil 150 can not push up lateral column 164, avoid lateral column 164 by coil 150 squeeze crack.

Fig. 4 illustrates the line segment 4-4 ' profile along Fig. 1, and its coil 150 is not cut open.

As shown in Fig. 2 and Fig. 4, in present embodiment, magnetic element 100 also comprises heat-conducting glue 170 and is poured in space 116.To be solidified into solid-state after heat-conducting glue 170 is poured into space 116.Heat-conducting glue 170 has the function of heat conduction, the heat energy that coil 150 and other elements produce can be directed to housing 110, and is removed by hot type by the heat abstractor (figure does not illustrate) be connected to outside housing 110.Due to heat-conducting glue 170 solidify after in solid-state, therefore can it be made can not to collide at housing 110 internal mutual because of the vibrations of magnetic element 100 by the element (such as drum stand 120 and coil 150 etc.) effectively in stationary magnetic element 100.Moreover, even if heat-conducting glue 170 after solidification in solid-state, also possess elasticity, therefore when magnetic element 100 shakes, heat-conducting glue 170 can the effective impulsive force that causes of absorbing vibration, to protect the element in magnetic element 100.

In present embodiment, the lateral column 164 of the first magnetic core 160 has the nearest cylinder 168 of distance center pillar 162, and the liquid level 172 of heat-conducting glue 170 is between bottom surface 114 and cylinder 168.At this, the liquid level 172 of heat-conducting glue 170 refers to the surface of heat-conducting glue 170 relative to farthest, bottom surface 114.The liquid level 172 of heat-conducting glue 170 represents that between bottom surface 114 and cylinder 168 height of heat-conducting glue 170 is no more than the cylinder 168 of lateral column 164.Therefore, after heat-conducting glue 170 expanded by heating, also can not be expressed to lateral column 164, cause lateral column 164 to break.

As shown in Fig. 2 and Fig. 4, in present embodiment, magnetic element 100 also comprises boss 128.Boss 128 is arranged at drum stand 120, in order to abut bottom surface 114.Coil 150 has coil outer surface 152, and boss 128 abuts bottom surface 114, makes to have spacing L between coil outer surface 152 and bottom surface 114.In other words, boss 128 makes coil 150 can not directly touch bottom surface 114 in order to frame height drum stand 120, prevents bottom surface 114 from extruding because of the vibrations of magnetic element 100 and even destroys coil 150 or drum stand 120.In another execution mode, there is heat-conducting glue 170 as resilient coating between coil outer surface 152 and bottom surface 114, therefore prevent the effect of vibrations better.This creates in another execution mode, also realizes having a spacing between coil outer surface and bottom surface by other modes.

Fig. 5 illustrates the profile of the magnetic element 100 creating another execution mode according to this, and its profile position is identical with Fig. 4, and its coil 150 is not cut open.

As shown in Figure 5, in present embodiment, magnetic element 100 comprises boss 128 and is arranged at drum stand 120.Housing 110 has detent 118 in its bottom surface 114.Boss 128 engages detent 118.Therefore, assembler, when the drum stand 120 of winding around 150 is placed in housing 110, by boss 128 and detent 118 quick position, reaches the object of rapid-assembling.And after drum stand 120 is placed in housing 110, because boss 128 and detent 118 locate the position of drum stand 120, therefore when magnetic element 100 is shaken, drum stand 120 also can be fixed, the problem of collision free.

Fig. 6 illustrates the stereogram of first magnetic core 160 of Fig. 2.Wherein second magnetic core 165 of Fig. 2 can be symmetrical with the first magnetic core 160, also can be asymmetric.As shown in Figure 6, the center pillar 162 of the first magnetic core 160 and lateral column 164 can be respectively circle, square, rectangle, trapezoidal, oval, random geometry or more at least any two combined shaped, lateral column 164 as the f figure of Fig. 6 is arc, also can be circle, square, rectangle, trapezoidal, oval, random geometry or more at least any two combined shaped, the center pillar 162 as the b figure of Fig. 6 is square and semicircular combined shaped.Create in another execution mode in this, the shape of center pillar 162 and lateral column 164 is also not specifically limited.

As shown in the c figure and f figure of Fig. 6, in present embodiment, center pillar 162 is cylinder.Because center pillar 162 is cylinder, what the cylinder 122 (referring to Fig. 9) of drum stand 120 also can be corresponding manufacture cylindric for coil 150 (referring to Fig. 9) around.When producing common flux, if the cylinder of drum stand 120 122 is in cylindric, then the winding length of coil 150 is the shortest, and equivalent resistance is minimum, consumes also minimum.

A as Fig. 6 schemes, d schemes and shown in e figure, in present embodiment, center pillar 162 is cuboids.Center pillar 162 is designed to cuboid can allow the manufacture process of the first magnetic core 160 easier, therefore can reduce manufacturing cost.

Fig. 7 illustrates the upper cover 180 of Fig. 2 and the assembling stereogram of binding post 190.Fig. 8 illustrates the upper cover 180 of Fig. 7 and the explosive view of binding post 190.

As shown in Figure 7 and Figure 8, in present embodiment, magnetic element 100 (referring to Fig. 2) also comprises upper cover 180 and binding post 190.Upper cover 180 is in order to cover housing 110 (referring to Fig. 2) and to be positioned at the opposite side of bottom surface 114 (referring to Fig. 2).Upper cover 180 has adjacent first surface 182 and second surface 184, and the normal direction of the normal direction of first surface 182 and second surface 184 is interlocked.Upper cover 180 comprises the first clamping part 183 and the second clamping part 185.First clamping part 183 is positioned at first surface 182.Second clamping part 185 is positioned at second surface 184.Binding post 190 is electrically connected coil 150 (referring to Fig. 2), and as connecting the interface of outside line.Binding post 190 comprises the 3rd clamping part 192 and the 4th clamping part 194.3rd clamping part 192 and the first clamping part 183 are removably interlocked, and restrain the degree of freedom of binding post 190 on first direction D1 and second direction D2 whereby.4th clamping part 194 and the second clamping part 185 are removably interlocked, and restrain the degree of freedom of binding post 190 on third direction D3 whereby.First direction D1, second direction D2 and third direction D3 Line independent each other.

As shown in Figure 8, the first clamping part 183 can be matrix clamping part, and the 3rd clamping part 192 then can be convex clamping part.With this cooperation in shape, the first clamping part 183 and the 3rd clamping part 192 are removably interlocked.Further, by restraining the degree of freedom of the 3rd clamping part 192 on first direction D1 and second direction D2, the degree of freedom of binding post 190 on first direction D1 and second direction D2 is also restricted in.Should be appreciated that, above lifted male-female engagement relation is only illustration, and is not used to limit this creation.

As shown in Figure 8, the second clamping part 185 can be convex clamping part, and the 4th clamping part 194 then can be matrix clamping part.Similarly, with this cooperation in shape, the second clamping part 185 and the 4th clamping part 194 are removably interlocked.Further, by restraining the degree of freedom of the 4th clamping part 194 on third direction D3, the degree of freedom of binding post 190 on third direction D3 is also restricted in.Should be appreciated that, above lifted male-female engagement relation is only illustration, and is not used to limit this creation.Due to first direction D1, second direction D2 and third direction D3 Line independent each other, when the degree of freedom of binding post 190 simultaneously on first direction D1, second direction D2 and third direction D3 is all restricted in, the position of binding post 190 can be fixed steadily.

As shown in Figure 7 and Figure 8, in present embodiment, upper cover 180 has nut groove 186 in wherein.Nut groove 186 is in order to hold nut 187.Binding post 190 has through hole 196 in wherein.When nut 187 is contained in nut groove 186, the first clamping part 183 and the 3rd clamping part 192 are interlocked, and when the second clamping part 185 and the 4th clamping part 194 are interlocked, the screw 188 of nut 187 is connected with the through hole 196 of binding post 190.

Now, penetrate through hole 196 by screw (figure does not illustrate) and be screwed with nut 187, whereby external electric device is attached on binding post 190, realizes the electric connection of binding post 190 and external electric device.Fixed steadily due to binding post 190 and restrained the position of nut 187.Therefore, external electric device also can be fixed after being screwed by screw and nut 187 steadily.This fixing means is not only easy to install, and very firm after installing, and especially can overcome and come off problem because shaking the binding post 190 caused.

In one embodiment, magnetic element 100 is transformer.In one embodiment, magnetic element 100 is inductance.In one embodiment, magnetic element 100 is the integrated component of transformer and inductance.And magnetic element 100 comprises at least one coil, drum stand comprises at least one winding space, and each winding space comprises a coil and is set around therebetween.As in an execution mode, magnetic element 100 is a transformer, coil comprises at least one first siding ring and at least one second siding ring, drum stand comprises at least one first winding space and at least one second winding space, this at least one first siding ring is set around this at least one first winding space, and this at least one second siding ring is set around this at least one second winding space.

Fig. 9 illustrates the drum stand 120 of Fig. 2 and the stereogram of coil 150.In present embodiment, magnetic element 100 is a transformer, and coil 150 comprises two first siding ring 154 and second siding rings 156.First siding ring 154 is in order to input voltage and produce induced field, and second siding ring 156 is in order to produce electric power output voltage by induced field.Drum stand 120 comprises winding space 210, winding space 210 comprises the first winding space 211, second winding space 213 and the 3rd winding space 215 that are arranged in order, second siding ring 156 is set around the second winding space 213, two first siding rings 154 are set around the first winding space 211 and the 3rd winding space 215 respectively, and namely second siding ring is between two first siding rings.But this creation is not limited thereto, also can be a first siding ring between two second siding rings, this creation those skilled in the art should be changed according to actual needs.

As shown in Figure 9, in present embodiment, drum stand 120 comprises cylinder 122 and dividing plate 130.Cylinder 122 has cartridge outer surface 124.Dividing plate 130 stands on cartridge outer surface 124, jointly defines winding space 210 between dividing plate 130 and cartridge outer surface 124 in order to cartridge outer surface 124.Coil 150 is set around in winding space 210.In one embodiment, Figure 10 illustrates the drum stand 120 of Fig. 2 and the stereogram of coil 150.Drum stand 120 comprises cylinder 122, and cylinder 122 has cartridge outer surface 124, and cartridge outer surface 124 does not have dividing plate, and at least part of cartridge outer surface 124 defines winding space 210.In one embodiment, drum stand 120 comprises at least one winding space.In one embodiment, drum stand 120 comprises at least two winding spaces, there is heat conduction space 217 between two winding spaces 210.In one embodiment, dividing plate 130 stands on cartridge outer surface 124, and dividing plate 130 and cartridge outer surface 124 define heat conduction space 217 between dividing plate 130 and cartridge outer surface 124 jointly, as shown in Figure 9.In one embodiment, heat conduction space 217 is defined by the region between two winding spaces 123, as shown in Figure 10.

In one embodiment, heat conducting medium filling thinks that in heat conduction space 217 coil 150 in winding space dispels the heat.In one embodiment, the heat conduction space defined by the region between two winding spaces 210, the direct thermo-contact coil 150 of heat-conducting medium, is directed to housing 110 with the heat energy produced by coil 150.In one embodiment, dividing plate 130 and cartridge outer surface 124 define heat conduction space jointly between dividing plate 130 and cartridge outer surface 124, Figure 11 illustrates the profile of the line segment 11-11 ' along Fig. 9, dividing plate 130 has passage of heat 134, passage of heat 134 exposes at least part of coil 150, make heat-conducting medium, as air-flow, heat-conducting glue 170 (referring to Fig. 4), passage of heat 134 thermo-contact coil 150 can be passed through, the heat energy that coil 150 and other elements produce is directed to housing 110, and by the heat abstractor (figure does not illustrate) be connected to outside housing 110, hot type is removed.And passage of heat 134 is positioned at dividing plate 130 part in the face of lateral column, as shown in Figure 2, passage of heat 134 is positioned at dividing plate 130 in the face of the part of lateral column 164 and lateral column 165 and is beneficial to coil heat radiation.Wherein be electrically connected the wire 158 of coil 150 not by passage of heat 134.

In one embodiment, heat-conducting medium is heat-conducting glue.Because heat-conducting glue 170 (referring to Fig. 4) can pass through passage of heat 134 directly thermo-contact coil 150, therefore the heat that coil 150 emits guides to housing 110 (please refer to Fig. 2) by heat-conducting glue 170 rapidly via heat transfer, and is removed by hot type by the heat abstractor be connected to outside housing 110.Therefore, the drum stand 120 of present embodiment has good heat-sinking capability.

In present embodiment, dividing plate 130 has the separator edge 136 relative to cartridge outer surface 124.Coil 150 has the coil outer surface 152 relative to cartridge outer surface 124.Distance between at least part of coil outer surface 152 and cartridge outer surface 124, is greater than the distance between separator edge 136 and cartridge outer surface 124, and passage of heat 134 is present between coil outer surface 152 and separator edge 136.In other words, in present embodiment, passage of heat 134 is not arranged in the hole of dividing plate 130.Therefore, the manufacture process of dividing plate 130 is easier.

In present embodiment, each dividing plate 130 has two separator edge 136.Separator edge 136 is flat surface, therefore when dividing plate 130 during fabrication, mfg. moulding die (figure do not illustrate) can be designed as the both sides demoulding, so can save the manufacturing cost of mould.But this does not limit this creation, create in other execution modes at this, separator edge 136 also can be curved surface, as long as passage of heat 134 can expose at least part of coil 150.

In present embodiment, dividing plate 130 comprises support portion 140.Support portion 140 has the edge, support portion 142 relative to cartridge outer surface 124.Distance between edge, support portion 142 and cartridge outer surface 124, is more than or equal to the distance between coil outer surface 152 and cartridge outer surface 124.Support portion 140, in order to support coils 150, makes coil 150 to be firmly wound in drum stand 120 and can not to move horizontally.

In present embodiment, dividing plate 130 also has line groove 144, and the wire 158 going out the electron-donating connecting coil 150 of line groove 144 passes through.Go out line groove 144 except wire 158 can be facilitated to pass, heat-conducting glue 170 (referring to Fig. 4) can also be made directly to pass through line groove 144 thermo-contact coil 150, to increase the radiating efficiency of coil 150.

In present embodiment, go out line groove 144 and be recessed to cartridge outer surface 124.Because coil 150 is outwards wound around by cartridge outer surface 124 round and round, and closest to the coil 150 of cartridge outer surface 124, its wire 158 needs to pass to be electrically connected other electric devices (figure does not illustrate), therefore the degree of depth going out line groove 144 depression, more close to cartridge outer surface 124, more can facilitate wire 158 to be piercing in outside coil 150.Moreover going out line groove 144, to expose the area of coil 150 larger, and heat-conducting glue 170 (referring to Fig. 4) is larger with the area of coil 150 thermo-contact, and the efficiency of coil 150 heat radiation is also higher.

Figure 12 illustrates and creates the drum stand 120 of another execution mode and the profile of coil 150 according to this, and its profile position is identical with Figure 11.

As shown in figure 12, in present embodiment, passage of heat 134 is the hole in dividing plate 130.Now dividing plate 130 also comprises ribs 138 and connects two support portions 140, and support coils 150, coil 150 can more preferably be fixed.

In present embodiment, the quantity of passage of heat 134 is multiple, to increase the radiating effect of coil 150.Figure 12 illustrates two passages of heat 134, each one up and down.But this creation is not limited thereto, this creation those skilled in the art should be able to be changed the quantity of passage of heat 134.

Figure 13 illustrates that its profile position is identical with Figure 11 according to this creation drum stand 120 of an execution mode and profile of coil 150 again.

As shown in figure 13, in present embodiment, dividing plate 130 also comprises support 146 across passage of heat 134, to strengthen the intensity of ribs 138, ribs 138 is not easily ruptured because of thermal expansion.

In present embodiment, the quantity of passage of heat 134 is that multiple (Figure 13 illustrates each passage of heat 134 up and down, but this creation is not limited thereto), and each passage of heat 134 has multiple support 146, therefore coil 150 dispels the heat by multiple passage of heat 134, multiple support 146 can stably fix coil 150 again simultaneously, causes coil 150 to move horizontally when shaking to prevent magnetic element 100.So in other execution modes, the quantity of passage of heat 134 and the quantity of support 146 can be any number.

In an execution mode, the magnetic core coordinated with above-mentioned drum stand can be the magnetic core of any shape, as U-shaped magnetic core, E shape magnetic core, as long as the passage of heat on above-mentioned drum stand is positioned at the part of the separator face on drum stand to the lateral column of magnetic core.

In sum, the magnetic element of one of above-mentioned execution mode, its coil surface to the part of housing bottom surface can directly thermal conductance to housing, and by the heat abstractor be connected to outside housing, hot type to be removed.Therefore, the magnetic element of above-mentioned execution mode has good heat-sinking capability.Further, because coil surface is to the part of bottom surface restraining not by magnetic core, when heating up because of running when magnetic element, magnetic core is also displacement at most, and can not the damaged fracture because of extruding.

Moreover the magnetic element of one of above-mentioned execution mode, its drum stand also has passage of heat.Therefore, heat-conducting medium can pass through passage of heat directly thermo-contact coil, and the heat that coil is emitted guides to housing by heat-conducting medium rapidly by heat transfer.Therefore, the drum stand of above-mentioned execution mode has good heat-sinking capability.

Claims (13)

1. a drum stand, is characterized in that, comprises:

One cylinder, has a cartridge outer surface; And

At least one dividing plate, stand on this cartridge outer surface, in order to jointly to define a winding space therebetween with this cartridge outer surface, be set around in this winding space at least one coil, this dividing plate has at least one passage of heat in wherein, this passage of heat exposes this at least part of coil, makes a heat-conducting medium can by this this coil of passage of heat thermo-contact.

2. drum stand as claimed in claim 1, it is characterized in that, wherein this dividing plate has at least one separator edge relative to this cartridge outer surface, and this coil has the coil outer surface relative to this cartridge outer surface, distance at least partly between this coil outer surface and this cartridge outer surface, be greater than the distance between this separator edge and this cartridge outer surface, this passage of heat is present between this coil outer surface and this separator edge.

3. drum stand as claimed in claim 2, it is characterized in that, wherein this dividing plate has two these separator edge, and each this separator edge is flat surface.

4. drum stand as claimed in claim 1, it is characterized in that, wherein this dividing plate comprises a support portion, this coil has the coil outer surface relative to this cartridge outer surface, this support portion has the edge, support portion relative to this cartridge outer surface, distance between this edge, support portion and this cartridge outer surface, is more than or equal to the distance between this coil outer surface and this cartridge outer surface.

5. drum stand as claimed in claim 1, is characterized in that, wherein this dividing plate also has one and goes out line groove in wherein, and this wire going out electron-donating this coil of connection of line groove passes through.

6. drum stand as claimed in claim 5, is characterized in that, wherein this goes out line groove and is recessed to this cartridge outer surface.

7. drum stand as claimed in claim 1, it is characterized in that, wherein this passage of heat is at least one hole in this dividing plate.

8. drum stand as claimed in claim 7, it is characterized in that, wherein this dividing plate also comprises:

At least one support, this support is across this passage of heat.

9. drum stand as claimed in claim 8, it is characterized in that, the quantity wherein across this support of each this passage of heat is multiple.

10. drum stand as claimed in claim 1, it is characterized in that, wherein the quantity of this passage of heat is multiple.

11. drum stands as claimed in claim 1, is characterized in that, are wherein electrically connected a wire of this coil not by this passage of heat.

12. 1 kinds of magnetic elements, comprise:

One magnetic core, has a lateral column; And

Just like the drum stand described in any one of claim 1 ~ 11, wherein this passage of heat is positioned at the part of this separator face to this lateral column.

13. magnetic elements as claimed in claim 12, is characterized in that, wherein this lateral column is arc, circular, square, rectangle, trapezoidal, oval, random geometry or more at least any two combined shaped.