CN101253303B

CN101253303B - Spacer arrangement with fusable connector for insulating glass units

Info

Publication number: CN101253303B
Application number: CN200680028068.4A
Authority: CN
Inventors: 雷蒙德·G·加勒格海
Original assignee: Technoform Glass Insulation Holding GmbH
Current assignee: Technoform Glass Insulation Holding GmbH
Priority date: 2005-08-01
Filing date: 2006-07-28
Publication date: 2013-09-25
Anticipated expiration: 2026-07-28
Also published as: CN101253303A; ES2356076T3

Abstract

A connector (31) for a spacer frame of an insulating glazing unit. The connector (31) is made .of a fusable material. When inserted into the hollow spacer profile body (1) the connector (31) is held in position by its resilient protrusions (31t, 31f, 32r, 32t, 32u) and is finally at least partly connected by fusing. The connector (31) can be used for linear and corner connection of spacer profiles. A method for manufacturing a spacer frame by fusing the connector piece, and an apparatus for carrying out the process is also claimed.

Description

Spacer structure when the hollow glass unit uses the fusible connector

Spacer structure when the present invention relates to hollow glass unit use fusible connector.

(to call the IG unit in the following text) field in the hollow glass unit, window industrial quarters processed adopt the spacer bar of tubulose to come separate panes of glass to make the IG unit a lot of years.As a convention, when making the IG unit of rectangle, spacer bar is cut into the length of regulation, and uses certain linkage or corner key to connect four distance pieces and make the spacer bar structure (framework) of IG unit corner.Be used for connecting distance piece and make the device at turning and be called corner key, the turning can be right angle or other angles.For conserve spacer material, the spacer bar of all lengths often couples together by straight type spacer keys structure.The design of corner key and the selection of material variation for many years.Typically, corner key can be metal forming spare, aluminum casting or injection molding working of plastics.Also attempted other material, but these materials are the most frequently used.For the design of corner key, each designer sought multiple shape and/or the cross section obtains the easily property inserted and the optimal result of drawing resisting property.Also there are some spacer keys to be designed to allow desiccant to pass through, also have some other design that distance piece is easy to mechanically to the bolt crimping.The steel spacer corner part also can adopt high-temperature soldering.

Be appreciated that the distance piece connector is a significant components of IG unit.They are used for the mechanical connection between the straight type distance piece, form a functional tubular spacer or glass separator, as a building block of IG unit finished product.Typically, formed the rectangular frame of a sealing after spacer bar connects, sealant is used for bonding surface of having filled distance piece and the glass of desiccant.Window industrial quarters processed has been developed the assembling process of a variety of IG unit, is used for seeking the optimum cost benefit of IG manufacture process.For example, a kind of foldable corner bolt of exploitation can make the process that forms distance piece become the process of a linearity.The technology of a kind of " turning bending " of also developing is eliminated corner key, but in this case, still needs a straight type bolt to finish spacer frame usually.In addition, compartment IG technology is adopting production line to make distance piece, makes that the economy cost benefit is fine in the manufacture process of distance piece.Most these spacer techniques all are to develop in nearest more than 70 year, and in the manufacture process of improvement distance piece that keeps.

TGI distance piece from Technoform (referring to US 2005/0100691A1 or EP 1 529 920 A2) is the synthetic distance piece of a kind of plastics and metal, and the inside of its spacer profile is made of plastics.

A kind of traditional intermetallic spacing body (referring to US 6,339, Figure 16 of 909), similarly metal by aluminium or stainless steel or other, therefore, the inside of spacer profile is made of metal.

These connectors or bolt are metal or the class nylon spares that barb teeth is arranged, and this design is easy to insert but is difficult to and extracts out or pull out, and corner key and straight type bolt can use.As if these connectors are worked quite reasonablely, but their unit price is very high, and each spacer frame needs a lot of.And under certain conditions/environment, they may lose efficacy to the fixing of distance piece, and simultaneously, because the spacer cross section inner surface must be compressed into or compress to buckle teeth, they are difficult to insert.

This invention can overcome the weak point that runs into when some use the conventional spacer connector at least.

As described, this distance piece can be metallic interior surface or plastic interior surfaces.When advising that this distance piece connector uses:

(1) the shape and size tolerance will make it easily go into to insert in the cavity of distance piece,

(2) being made by the low price plastics, can be to be similar to TGI distance piece liner, and

(3) inner surface with spacer cross section fuses.

The last item feature (3) has special significance, because it is a special concept, when making connector and distance piece bonding, can obtain better bond strength and convenience.Mainly, this scheme needs a relevant low temperature alloying process, and its temperature range is to about 600 from room temperature

(about 315 ℃).This fusion comprises, the distance piece inner surface is the situation of plastics, fusion is to set up being connected on the material by the plastic interior surfaces of fusing distance piece and the plastics external surface of connector, and it makes mixed being incorporated in of material of fusing cool off the connection that produces afterwards on the irreversible material.The distance piece inner surface is the situation of metal, be set up by the plastics external surface of fusing connector strong bonding, after cooling can with the strong bonding and/or combination of the metallic interior surface generation of distance piece.

The mechanical connection of traditional spacer key comes loose through regular meeting, makes distance piece be separated from each other.

Be because moisture has infiltrated open joint on this failure reasons of IG unit.Adopt the combination of (above) suggestion to make the spacer joint fusion together, can prevent that the slit from appearring in joint as the joint of firm welding.

This means that a kind of connector of cheapness is used in the IG distance piece as " bonded block ".

There are many kinds of methods can set up bolt, such as a kind of corner key or a kind of straight type bolt, are connected with this fusion of distance piece.

The certain methods that suggestion is adopted is as follows, and certainly, below tabulation does not represent to comprise all methods:

(1) directly heating and fuse a thermoplastic connector and thermoplastic or intermetallic spacing body liner by heat conduction.Conduction heat is applied in the direct contact position between heater and the joint area.

(2) adopt the heat radiation of flame or infrared lamp to come heated coupling.

(3) employing is similar to the hot air of the device generation of hair-dryer.

(4) adopt friction welding, can use welding equipment, the joint part that relatively moves fast produces the joint that frictional heat forms fusion.

(5) adopt the welding of ultrasonic wave or radio frequency (comprising microwave), rely on the vibration of material molecule to produce heat, these heats make the material deliquescing and combine.

(6) use chemicals that the surface is fused together on the surface of parts.A connection that example is plastic pipe of this method.

(7) adopt adhesive, glue or sealant are finished required joint.

These just fuse some examples in the feasible method of distance piece connector and spacer bar.In a word, using the distance piece connection of low temperature, fusible is the unique method that solves present connector issue or compensate its defect.

Summary of benefits:

^*Increased the strength of joint of connector and distance piece.

^*Reduced the insertion work on the production line.

^*Reduced the problem of IG unit field.

^*Reduced the cost of IG parts.

Below be the figure that is correlated with among the embodiment of connector and application thereof:

Fig. 1 is equivalent to the Fig. 2 among the US 2005/0100691A1, is the sectional view of a TGI spacer profile 1 in the IG unit partial section;

Fig. 2 is equivalent to US 6,339, the Figure 16 in 909, be intermetallic spacer profiles 1 in the IG unit partial section ' sectional view;

Fig. 3 is the embodiment that the straight type fusible connector of hangnail tooth Shape Design is arranged.A) being vertical view, b) is left view a), c) is front elevation drawing a);

Fig. 4 is the embodiment that 90 ° of corner connectors of hangnail tooth Shape Design are arranged.A) being lateral view, b) is vertical view a);

Fig. 5 is the embodiment that the straight type fusible of hangnail tooth Shape Design connector is arranged, and a) is the vertical view on wideer one side, b) is the lateral view of seeing from a) the place ahead, is from b c)) the right-hand front elevation drawing of seeing, d) be b) in the enlarged drawing of circle A position;

Fig. 6 is the embodiment that 90 ° of corner connectors of hangnail tooth Shape Design are arranged, and a) is lateral view, b) is the front elevation drawing of seeing from a) right side, c) be a) in the enlarged drawing of circle B position;

Fig. 7 is the vertical view of device of making the spacer frame of hollow glass unit;

Fig. 8 has the distance piece fastening devices, and when the fusion operative position is equipped with heater, the vertical view that installs among Fig. 7;

Fig. 9 is the lateral view that installs among Fig. 8;

Figure 10 is the vertical view that installs in corresponding diagram 8 vertical views when having spacer frame;

Figure 11 is two kinds of embodiment of the spacer bar shape that fused; And

Figure 12 is intermetallic spacer profiles when preferably being connected with the fusible connector, and the end connects an embodiment of design.

Contrast Fig. 1 and Fig. 2, pane 23 extends in parallel, and window pane interspace 24 is limited on the plane that is parallel to X and Z direction.The outer perimeter in gap 24 is by (cylinder, preferably hollow) spacer profile 1,1 ' make spacer frame with bonding and encapsulant 21,22 to limit.Introduce in detail and see US 2005/0100691A1.

For above mentioned spacer profile framework is provided, need to use one or more as the straight type connector among Fig. 3 or Fig. 5 and/or as 90 ° of corner connectors in Fig. 4 or 6.

Mention as above, the TGI spacer profile is to use an example in plastics and the synthetic distance piece of metal.The example of the synthetic distance piece of another this plastics and metal is at US 6,339, discloses in 909.

The inside of this profile (liner) is by among the picture US 2005/0100691A1, paragraph [0010], [0011] and [0058] material that the play-plastic deformation can be taken place of introducing make, namely, the material that the play-plastic deformation preferably can be taken place comprises synthetic or natural materials, after material bending surpassed its elastic-restoring force, irreversible plastic strain can take place.In these preferable material, after surpassing its surperficial yield point, spacer profile distortion (bending) can not produce elastic-restoring force in fact.Typical plastic material with low thermal conductivity also is optional (that is, preferred thermal insulation material), and less than 5W/ (mK), thermal conductivity is preferentially selected during less than about 1W/ (mK), if can select at first less than about 0.3W/ (mK) such as thermal conductivity.Especially, the preferred material of profile comprises: thermoplastic synthetic materials such as polypropylene, polyethylene, terephthalate, polyamide and/or Merlon, but be not limited to these materials.These plastic materials also comprise filler commonly used (as fibrous material), additive, dyestuff, antiultraviolet material etc.Profile preferable material thermal conductivity can be littler 10 times than the thermal conductivity of profile strengthening material at least, preferentially selects for use in the time of little 50 times, selects for use at first in the time of little 100 times.The inside of this profile can be made of following: polypropylene Novolen 1040K, or add the polypropylene MC208U of 20% mica powder, or polypropylene BA110CF, this is a kind of heterophasic copolymer, the both can from, the Borealis A/S company of Denmark Kongens Lyngby obtains [0] [0] [0], perhaps a kind of polypropylene homopolymer Adstif of Basell Polyolefins company

HA840K.

Corner connector 31 or straight type connector 32 are selected material on the external surface facing to spacer profile 1 inner surface at least, are Nylon 6, perhaps use with the inboard identical materials of interval profile body and make.In this respect, also can select the material as connector of introduction in the US 2005/0100691A1 manual part.In addition, the material that those can form fused interface with spacer profile 1 inside material also can be used as the material of

whole connector

31,32 or is the material of

connector

31,32 external surfaces at least.Preferably,

connector

31,32 is made by polyamide, and best choice is Nylon

6, or polypropylene.

Referring to Fig. 4, Fig. 6 and Fig. 7,90 ° of corner connectors 31 are by two insertion portion 31a, and 31b interconnects and forms connector 31.Referring to Fig. 3, Fig. 5 and Fig. 7, straight type connector 32 are by two insertion portion 32a, and 32b interconnects and forms connector 32.When using

connector

31,32 to connect corresponding spacer profile 1a, 1b and 1c, during 1d, corresponding insertion portion 31a, 31b, 32a, 32b is inserted into corresponding spacer profile cross section (or part) 1a, 1b, Ic is among the 1d

Connector

31,32 will insert in spacer profile 1 inner space 7, their shape of cross section is perpendicular to direction of insertion, its insertion portion 31a, 31b, 32a, the cross sectional shape of 32b is perpendicular to direction of insertion, and is corresponding, preferred with the cross sectional shape of the inner space 7 of spacer profile, its size needs smaller a little, makes it be easy to insert the inner space 7 of distance piece.This means that connector preferred cross-sections size is enough near, as indicated above with the fused interface of the inside of distance piece, if possible, at least part of inside that touches distance piece.For example, the width of TGI distance piece on directions X among Fig. 1 is 15.5 millimeters, and the Breadth Maximum of inner space 7 on directions X is about 13.5 millimeters, about 4.9 millimeters of the height of inner space 7 on Y-direction.In this case, the gap, cross section that insert the

connector

31,32 of distance piece inner space 7 can be selected in 0.2 millimeter scope.The gap should be in 0.5～5% scope, and preferably 1～4%, certainly, this also depends on the overall dimension of distance piece.

Preferably, connector has conical little tapering in direction of insertion, and for example, the connector tip section that inserts spacer profile is smaller.Because be conical, sectional dimension has the part gap at least.

When adopting this taper shape to connect the cross sectional shape that matches (size is corresponding), can overcome the manufacturing tolerance problem of cross sectional shape.

In the cross sectional shape of Fig. 3

connector

31,32 in Fig. 6, at connector body 31c, projection/tooth 31t is arranged, 31f, 32r, 32t, 32u on the 32c.

Connector

31,32 designs have barb teeth, namely, facing after the insertion on one or more external surfaces of distance piece inside, projection is profile of tooth, in direction of insertion certain gradient is arranged in the other direction, that is, insert the top sensing of the projection in the distance piece away from the direction on connector top.

According to this design, the cross sectional shape of connector is perpendicular to direction of insertion, after connector inserts the inner space, roughly matches with the cross sectional shape of the inner space 7 of spacer profile.Reason is projection opposite direction bending to direction of insertion when inserting, and has produced elastic force.Now, when projection/tooth respective curved, projection has roughly coincide the cross section of connector and the cross sectional shape of inner space, before inserting, the cross sectional shape of connector and the cross sectional shape of inner space are misfitted, but after inserting, it is identical substantially with the cross sectional shape of inner space that the cross sectional shape of connector becomes.

To Fig. 6, this means width w1 referring to Fig. 3, w2 (width on the directions X, if insert spacer profile illustrated in figures 1 and 21,1 ' in) and height h (height of Y-direction among Fig. 1 and Fig. 2) be selected to make the cross section after insertion, roughly to coincide.For example, in Fig. 3, projection/tooth 32t, 32u do not surpass whole height h.As a result, if this connector has inserted in the cross section profile as depicted in figs. 1 and 2, may with the

cross section profile

1,1 of non-rectangle ' cooperate betterly.

In addition, it is to be noted that design has the connector of barb teeth that a conical top is also arranged among Fig. 3 and Fig. 4, be used for inserting spacer profile.In this corner connector of Fig. 3, also be to be undertaken by highly less nipper 31f in the insertion process.

Be appreciated that the power that is needed by the traditional barb teeth designing institute of the force rate of this barb teeth designing institute generation is much smaller.This power only needs to satisfy before the alloying process that fusion connects is finished makes the external surface of connector with the inner surface of spacer profile enough contacting be arranged.Not need the life cycle of IG unit finished product in guarantee that all tooth and distance piece inside have one by fricative powerful hold because this hold is obtained by fusion.

Connector 32 among Fig. 3 comprises the projection 32t on the U-shaped body 32c sidewall, 32u.Clearly, cross sectional shape and Fig. 3 c of profile among comparison diagram 1 and Fig. 2) in the connector cross sectional shape, the height h (y) of preferred connector is close to the height of profile, and width (w ₁(x)) preferred bigger than the width of profile, to such an extent as to after inserting, projection is crooked and touch the inboard of profile, be used for fusion.Connector 31 among Fig. 4 comprises bar shaped insertion portion 31a, the projection 31t of the side (a low side) of 31b (from Fig. 1 and Fig. 2, inserting the downside that the direction of body is seen), and 31f has formed the main body 31c of corner connector 31.Also very clear, the cross sectional shape of the cross sectional shape of profile and corner key among comparison diagram 1 and Fig. 2, insertion portion 31a, the width (w of 31b ₁(x)) preferably be close with the width of inner space body, and height h (y) preferably the height than inner space body is big, to such an extent as to after insertion, projection 31t, 31f is crooked and touch the inboard of body, is used for fusion.Correspondingly, the size of connector on the projection projected direction is bigger than the corresponding size of inner space body (distance piece), connector perpendicular to the size on the projection projected direction preferably near the size of inner space body.The embodiment of straight type connector 32 is the straight type connector of the connector 32 among a kind of Fig. 3 of being similar to as shown in Figure 5, but has projection 32t to replace the outstanding projection in side at downside (similar to the corner connector among Fig. 4).Because the projection direction is identical, corner connector identical among the size of connector 32 and Fig. 4 mentioned above among Fig. 5.Connector 32 among Fig. 5 has 6 projections at each insertion portion 32a on the 32b.Insert position 32a, the projection 32t on 32b top ₁First the height h ₁, preferably approximate the height of inner space profile greatly.Projection height (h ₂To h ₅) increase progressively (h to the connector center position ₂＜h ₃＜h ₄＜h _s).Innermost two the projection 32t in every limit ₅With 32t ₆Height h ₅Identical (maximum).Fig. 5 b) in, there is the projection 32m of a box-shaped at the middle part of connector 32, first projection 32t on its height and top, both sides ₁Height h ₁Identical.In addition, the upside of the connector among Fig. 5 32 (downside among=Fig. 5) has some projection 32r as smaller (littler than projection 32t) of hook (approximately surpass every end length 1/3rd).The embodiment of corner connector 31 comprises the basic design of the projection of straight type connector among Fig. 5 among Fig. 6, but at each insertion portion 31a, 31b is 5 rather than 6 projection 31t ₁..., 31t ₅Each insertion portion 31a, the innermost projection of 31b are the projection 31m of a box-shaped.The same with the mode of connector among Fig. 4, there is adjacent projection 31p the both sides of connector.

The downside projection 31t of straight type connector and corner connector among Fig. 5 and Fig. 6 ₁... the angle of inclination be about 30 °

Although the characteristic of the four kind connectors of Fig. 3 in Fig. 5 can combine,, the embodiment shown in Fig. 5 and Fig. 6 is preferably with connector and profile fusion.Aspect this, reiterate that the finished product of IG unit need all not guarantee one by the powerful holding power that produces by tooth (projection) and distance piece internal friction in whole life cycle, but must adopt the fusion mode.This is preferred as the projection form among Fig. 5 and Fig. 6 on using.

Next, introduce the method and apparatus of making hollow glass unit interval spare frame construction.Device 100 shown in Fig. 7 to 10 is used for making such spacer frame.Device 100 comprises chassis 101 (see figure 9)s.In the detail drawing, a distance piece bracing or strutting arrangement 110 as spacer support block, is installed on the chassis 101 by support member 102 in the present embodiment.A distance piece bracing or strutting arrangement (distance piece supporting tool) 120 that in alloying process, is used for supporting spacer profile, pass through linear slide rail 140a with a heater (heating tool) 130,140b is installed on the chassis 101, and it can be moved along arrow F direction straight line.Each linear slide rail comprises a guide peg 141, is secured on the chassis by guide peg eyelid retractor 142.

A starting drive 150 comprises a cylinder 152 that is installed on the chassis 101, piston rod 151 on cylinder 152, it is connected on the heater 130, therefore, starting drive is suitable for doing the starter of heater 130, makes it mobile in arrow F direction.As a part of starting drive 150, drive unit 155 comprises helical spring 156 and spring conductor rod 157.Spring conductor rod 157 is fixed on the distance piece bracing or strutting arrangement 120, and insert in the heater 130, spring conductor rod can be with respect to heater 130 along mobile on the arrow F direction, the complete impaction state of moving range from the ultimate range D of Fig. 7 spacers bracing or strutting arrangement 120 and heater 130 to helical spring 156.Ultimate range D is that the free end border projection 157a by spring conductor rod 157 limits.

It is square that spacer support block 110 is seen from the top, highly is h ₁₁₀Fluted 111 in adjacent both sides, its shape is suitable for and the spacer profile shape, will be further elucidated hereinbelow.

Distance piece bracing or strutting arrangement 120 comprises a back-up block 121, and it can move at guide peg 141 upper edge direction of arrow F straight lines.The upside of back-up block 121 is equipped with two support rollers 122, between the support roller 122,122 apart from the horizontal direction perpendicular to arrow F.The arrangement of spacer support block 110 is that if see it is individual square from the top, intersect at the center of a square diagonal and the line of two support rollers 122,122.As a result, when the distance piece bracing or strutting arrangement when arrow F direction moves, between support roller 122 and the spacer support block 110 some distances are always arranged.In the vertical view of Fig. 7, groove 111 is to face on two adjacent sides of support roller 122.

Heater 130 comprises a back-up block 131, and it can move at guide peg 141 upper edge arrow F direction straight lines.A heater 132 is arranged on back-up block 131.This heater comprises a copper body 133.The shape of this copper body is that the heat transfer part is outstanding to distance piece bracing or strutting arrangement 120.In the present embodiment, the shape of heat transfer part is as fork, at the ledge of two heat transfer edges 133h a recess 133r arranged, and from the vertical view of Fig. 7, it has surrounded 90 ° angle.

More than be the detailed introduction that is applicable to the device of making the spacer frame that corner connector is arranged, following operation introduction will be clearer.

Need to be fit to make under the situation of the spacer frame that has straight type connector at device, on vertical view, the direction of spacer support block 110 will change 45 °.In addition, consider Fig. 7 to the size of Figure 10 spacers back-up block 110, the distance between the support roller 122,122 need reduce or spacer support block 110 is needing to strengthen perpendicular to the relevant horizontal dimension on the direction of arrow F.In addition, the shape of heat transfer part needs to coincide with it, and heat transfer edges 133h will extend perpendicular to the horizontal direction of arrow F.

Next, the operation of installing in the key diagram 7 to Figure 10.In the vertical view of Fig. 7, piston rod 151 is withdrawn in the pneumatic cylinder 152, thereby makes heater 130 be in retracted position.Because the elastic force of helical spring 156, distance piece bracing or strutting arrangement 122 is in ultimate range D.

Spacer frame comprises two spacer profile body portions 1, inserts the groove 111 of the spacer support block 110 among Figure 10, and corner connector can adopt with the same way as shown in Figure 11 and insert.Suppose the shape of cross section of spacer profile body as shown in Figure 1, the shape of cross section of groove 111 wants to allow spacer profile to inject.In other words, height h ₁₁₁Bigger a little than the width of Fig. 1 spacers body on directions X.

This spacer profile arrangement, spacer profile body portion 1 and the corner connector that do not have fusing are when being inserted into the groove 111 of spacer support block 110, and cylinder 152 starts, thus piston rod 151 is pushed to the direction of arrow F1.Then, heater 130 is pushed to the direction of arrow F1, and then, by helical spring 156, distance piece bracing or strutting arrangement 120 is pushed to the direction of arrow F1.

At first, by a holding power that is produced by spring 156 elastic force, the support roller 122 on the distance piece bracing or strutting arrangement 120 will contact with spacer profile body portion 1.As shown in figure 10, piston rod 151 moves along arrow F1 direction, touches the outside of spacer profile body portion 1 up to heat transfer edges 133h.

On this position, corner connector is inserted into the spacer profile body portion and contacts with the inside of spacer profile body portion.The operation heater makes heat pass to the outside of spacer profile body portion 1 by heat transfer edges 133h.Subsequently, the material of spacer profile body inside part and connector begins partial melting.

Subsequently, heater is withdrawn several millimeters to the direction of arrow F2 a little, because helical spring 156 still produces a power to distance piece bracing or strutting arrangement 120, spacer profile arrangement still is spaced apart part back-up block 110 by support roller 122 and is supporting.After short several seconds, spacer profile body melt portions inner and connector is cooled, thereby fusion is got up.

Now, piston rod 151 is fully retracted to the position among Fig. 7, thereby the spacer profile arrangement of fusion can be removed from spacer support block 110.

In Fig. 8 and Fig. 9, the same among the position of this covering device and Figure 10, but there is not spacer profile arrangement.Certainly, the professional person is very clear, and in this case, because the power of spring 156, bracing or strutting arrangement 120 can move fartherly, up to back-up block 121 near support member 102.Therefore, Fig. 9 and Figure 10 have shown " freezing " position of bracing or strutting arrangement 120, and in order clearly to represent operating position, spacer profile arrangement has showed in Figure 10.

Be not subjected to the restriction of Fig. 7 Design of device in Figure 10, in order to make spacer profile arrangement, being connected by fusion of spacer profile body portion and connector obtains, and a kind of method that can adopt is to use above inside that the method for explanation arbitrarily makes connector and spacer profile body portion to engage by fusing.

Adopt the fusible connector to connect 1 ' time of intermetallic spacer profiles body that Figure 12 intermediary continues, a more outstanding advantage is arranged.In the time of intermetallic spacer profiles body 1 ' formation spacer frame, at least in certain position, intermetallic spacer profiles body 1 ' two ends must be connected, for example, by straight type connector.This situation has showed in a) at Figure 12, intermetallic spacer profiles body 1 ' two ends 1e1 and 1e2 be in contact with one another, its cross sectional shape is at Figure 12 b) in showed.Figure 12 b) direction of view is Figure 12 b in) in the direction of arrow A.One of them is the 1e1 end in the present embodiment at two ends, has a metal bolt 11 outstanding to direction along the spacer profile axon from the end.In manufacture process, be easy to produce such metal bolt at the corresponding end of intermetallic spacer profiles body, for example, by punching press/punching.Latch 12 preferred forms are that latch 11 is wideer near the cross section 11s of its trunk portion 1s near the cross section 11w ratio of its end 11t.Preferably, latch 11 is corrugated.Figure 12 c) be Figure 12 b) right side view.

Significantly, latch 11 is easy to insert other end 1e2, if use the fusible connector among the present invention to connect two ends by this latch, the fusing of fusible connector will be set up the type of attachment that is fit to fusible connector and latch, strengthen bond strength.In addition, also may impression be arranged in the inside of other end 1e2, make the molten material of connector further be fit to its form, further strengthen bond strength.

Correspondingly, the application discloses a kind of fusible connector for hollow glass unit interval spare, the extending upward in first party of distance piece with hollow profile body, a default cross section is being arranged perpendicular to first direction, default cross section is by having defined the inner hollow space of spacer profile body perpendicular to the pre-set dimension on the first direction plane, connector has a connector cross section that is fit to insert from first direction spacer profile body inner hollow space, its cross sectional shape is perpendicular to first direction, and with the cross section that limits spacer profile body inner hollow space corresponding default tolerance arranged.But behind the same material that the insertion integrating materials is made, make the external surface in connector cross section over against the inner surface of the inner hollow space of spacer profile body at least.The fusible material that preferably can melt equally.This connector has conical tapering in direction of insertion.In this connection, the cross sectional shape in connector cross section has a default gap on the plane perpendicular to direction of insertion.

Statement clearly, all disclosed characteristics and/or plan separately independent disclosed claim mutually in manual, the invention that its objective is original disclosure and limit statement is independent of the property combination in concrete introduction and/or the claim.Clear and definite explanation all number ranges or disclosed each possible median or middle in kind with some groups of indications in kind, the invention that its objective is original disclosure and limit statement is independent of the property combination in concrete introduction and/or the claim.

Claims

1. the spacer frame of a hollow glass unit, comprise a spacer profile body (1) that extends along first direction (Z), at the plane (X perpendicular to first direction (Z), a default cross section is arranged Y), should pass through at the plane (X perpendicular to first direction (Z) by default cross section, Y) pre-set dimension on has defined the hollow interior space (7) of this interval profile body (1), and the inboard of the inner space (7) of spacer profile body restriction is made by polypropylene at least, and

Connector (31,32) comprise insertion portion (31a, 31b, 32a, 32b), this insertion portion forms the barb teeth design with elastic protrusion with the form of tooth at one or more connector external surfaces, and is suitable for inserting from first direction (Z) inner hollow space (7) of spacer profile body, its cross sectional shape is perpendicular to first direction (Z), and with the cross section that limits spacer profile body inner hollow space (7) corresponding default tolerance arranged; At least the external surface of the insertion portion that fits with spacer profile body inner hollow space inner surface after inserting is made by polyamide,

Wherein (32a 32b) is inserted in the inner hollow space (7) of spacer profile body (1) insertion portion for 31a, 31b, and spacer profile body inner surface is connected with described tooth fusion.