CN204668589U - Terminals subrack and explosion-proof device - Google Patents
Terminals subrack and explosion-proof device Download PDFInfo
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- CN204668589U CN204668589U CN201520372664.0U CN201520372664U CN204668589U CN 204668589 U CN204668589 U CN 204668589U CN 201520372664 U CN201520372664 U CN 201520372664U CN 204668589 U CN204668589 U CN 204668589U
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Abstract
The utility model provides a kind of terminals subrack and explosion-proof device.This terminals subrack comprises each other relative first surface and second surface; First group of pin holes and second group of pin holes, each pin holes in first group of pin holes and second group of pin holes runs through first surface and second surface, and first group of pin holes and second group of pin holes fluidly separate each other in the region of terminals subrack; Embedding Material hand-hole, Embedding Material hand-hole runs through first surface and is formed with second surface and be communicated with each pin holes fluid in first group of pin holes.Adopt terminals subrack of the present utility model, Embedding Material, by along predetermined embedding path flow, is conducive to discharging the air in embedding path, prevents from producing bubble in Embedding Material layer.In addition, sufficient embedding is carried out in the gap between also helping the dependency structure adopted in the explosion-proof device of this terminals subrack, thus drastically increases the explosion insulation performance of explosion-proof device.
Description
Technical field
The utility model relates to terminals subrack, especially, relate to the terminals subrack being suitable for the electronic device in explosion-proof device being carried out to embedding flame proof, the utility model also relates to the explosion-proof device with this kind of terminals subrack, especially, the transmitter with this kind of terminals subrack is related to.
Background technology
The content of this part only provides the background information relevant to the disclosure, and it might not form prior art.
Explosion-proof device (such as transmitter) is a kind of equipment that industrial control equipment field is commonly used, instrument and other electronic device and terminals subrack are all encapsulated in housing by usually, produce the blast of the explosion-proof device inside that spark causes by the fuel gas of explosion-proof device outside or Liquid pilot to prevent the circuit because of explosion-proof device inside.In order to reach the object of flame proof, usually by terminals subrack the contact pin of external cable is connected to the electronic device in explosion-proof device, and embedding process is carried out to the gap between the composition surface of associated components.
Some electronic equipment requires higher to flame proof, and in order to meet flame proof requirement, Embedding Material layer needs enough thick.Feasible solution extends an embedding path, increases the thickness of Embedding Material layer, and correspondingly, the length of planting the contact pin that electronic equipment is combined therewith is general also long.For this reason, can electronic device (as circuit board) in explosion-proof device and between terminals subrack, additional intermediate connector is set.Contact pin successively through after terminals subrack and intermediate connector with corresponding electronic device grafting, and utilize Embedding Material (such as casting glue) from the first surface of terminals subrack to the gap between terminals subrack and intermediate connector, inject Embedding Material in the gap between contact pin and intermediate connector and the gap between intermediate connector and electronic device and the gap between other associated components, reach the object of flame proof thus.
However, if the vibrational power flow of terminals subrack is improper, easily cause the embedding structure obtained cannot meet the flame proof requirement of explosion-proof device, such as, in the Embedding Material layer obtained, there is non-embedding Embedding Material between bubble or part composition surface.
In view of this, how to design the structure of terminals subrack rightly, require to become the technical problem that those skilled in the art are badly in need of solution with the flame proof meeting explosion-proof device.
Utility model content
An object of the present utility model is to provide a kind of terminals subrack with the embedding path of optimization.
Another object of the present utility model is to provide a kind of terminals subrack it with the two groups of pin holes fluidly separated each other, fluidly spaced apart between two groups of pin holes in this terminals subrack, making can only along predetermined embedding path flow from the Embedding Material of Embedding Material hand-hole injection.
Another object of the present utility model is to provide a kind of explosion-proof device with aforementioned terminals subrack.
According to an aspect of the utility model execution mode, which provide a kind of terminals subrack, comprise each other relative first surface and second surface; First group of pin holes and second group of pin holes, each pin holes in described first group of pin holes and described second group of pin holes runs through described first surface and described second surface, and described first group of pin holes and described second group of pin holes fluidly separate each other in the region of described terminals subrack; And Embedding Material hand-hole, described Embedding Material hand-hole runs through described first surface and is formed with described second surface and be communicated with each pin holes fluid in described first group of pin holes.
Preferably, described second surface is formed with the first recess, described first group of pin holes is arranged in described first recess and via described first recess fluid communication with each other.
Preferably, described Embedding Material hand-hole is communicated with described first recess fluid.
Preferably, described second surface is also formed with the second recess arranged with described first recess compartment of terrain, and described second group of pin holes is arranged in described second recess and via described second recess fluid communication with each other.
Preferably, described first recess and described second recess via the rib be formed between described first recess and described second recess in the region of described terminals subrack each other fluid separate.
Preferably, in described second group of pin holes, include far-end pin holes, described far-end pin holes on the flow direction of Embedding Material be described second group of pin holes each pin holes middle distance described in Embedding Material hand-hole pin holes farthest.
Preferably, described far-end pin holes is arranged near embedding monitoring part interface, and described embedding monitoring part interface is formed in described terminals subrack or is formed on the intermediate connector of the described second surface being engaged to described terminals subrack.
Preferably, described terminals subrack has umbrella shape shape, described umbrella shape shape comprises umbrella handle portion and umbrella cover portion, and wherein, described first group of pin holes comprise be positioned at described terminals subrack umbrella handle portion on and at least one pin holes of arranging along described umbrella handle portion and at least one pin holes be positioned in the umbrella cover portion of described terminals subrack; Described second group of pin holes comprises and is positioned at described far-end pin holes in described umbrella cover portion and at least one other pin holes; And the pin holes be positioned in described umbrella cover portion in described second group of pin holes and described first group of pin holes is arranged along the curved edge in described umbrella cover portion.
Preferably, described Embedding Material hand-hole is close to the composition surface in described umbrella handle portion and described umbrella cover portion.
Preferably, the upper surface being positioned at described first surface of each pin holes in described first group of pin holes and described second group of pin holes is recessed relative to described first surface.
Preferably, described terminals subrack is also provided with reduced thickness region, described reduced thickness region is positioned at the region except described first group of pin holes and described second group of pin holes region in described terminals subrack.
Preferably, described reduced thickness region comprises the one or more recess be formed on described second surface.
Preferably, waiting to be plugged between contact pin in described first group of pin holes and described second group of pin holes and corresponding pin holes is interference fit.
Preferably, described terminals subrack is made of plastics.
According to another aspect of the utility model execution mode, which provide a kind of explosion-proof device, wherein, described explosion-proof device comprises aforesaid terminals subrack.
Preferably, described explosion-proof device also comprises intermediate connector, described binding post bridge joint is bonded to the first surface of described intermediate connector, the second surface of described intermediate connector is engaged to the wiring board in described explosion-proof device, and wherein, described intermediate connector being provided with the multiple through holes corresponding with the contact pin mouth on described wiring board, the described second surface of described intermediate connector being provided with and the communication groove for making described multiple through hole be communicated with; And the described first group of pin holes in described terminals subrack and each pin holes in described second group of pin holes and the described multiple through hole one_to_one corresponding on described intermediate connector.
According to terminals subrack of the present utility model and the explosion-proof device with this terminals subrack, at least there is following Advantageous Effects:
Because group pin holes of two in terminals subrack is not communicated with each other, and Embedding Material hand-hole is only communicated with each pin holes fluid in group pin holes of first wherein, therefore, the Embedding Material injected from Embedding Material hand-hole will only along the predetermined embedding path flow on terminals subrack second surface, and can not can be flowed directly in each pin holes in second group of pin holes by this terminals subrack.Therefore, when terminals subrack of the present utility model is applied to intermediate connector, Embedding Material will flow into the intermediate connector be arranged in below terminals subrack further, and through hole corresponding with group pin holes of second in terminals subrack in intermediate connector further oppositely flows, thus embedding filling is carried out to each through hole in intermediate connector and the gap between intermediate connector and terminals subrack, so, be conducive to discharging the air in embedding path, prevent from producing bubble in Embedding Material layer.
Because second group of pin holes comprises far-end pin holes, and this far-end pin holes is each pin holes middle distance Embedding Material hand-hole pin holes farthest of second group of pin holes on the flow direction of Embedding Material, therefore, sufficient embedding is carried out in gap between being conducive to associated splice face, thus drastically increases the flame proof reliability of the product that embedding obtains.
Adopt according to the explosion-proof device of terminals subrack of the present utility model, due to can not entrap air bubbles in Embedding Material layer, and Embedding Material substantially can fill associated components fully composition surface between gap, therefore, there is good explosion insulation performance.
Accompanying drawing explanation
By the description referring to accompanying drawing, the feature and advantage of one or more execution mode of the present utility model will become easier to understand.Accompanying drawing as described herein is only be not intended to limit scope of the present utility model by any way for purpose of explanation, and accompanying drawing is not drawn in proportion, and some features may be exaggerated or reduce to show the details of particular elements.In the accompanying drawings:
Fig. 1 illustrates the schematic diagram according to the annexation between the intermediate connector in terminals subrack of the present utility model and explosion-proof device and circuit board;
Fig. 2 is the schematic diagram of the annexation illustrated between the circuit board in contact pin and explosion-proof device;
Fig. 3 is applied to schematic diagram between contact pin and circuit board according to the terminals subrack of an aspect of the present utility model, wherein eliminates the intermediate connector be arranged between contact pin and circuit board;
Fig. 4 is the schematic diagram of the first surface illustrated according to terminals subrack of the present utility model;
Fig. 5 is the schematic diagram of the second surface illustrated according to terminals subrack of the present utility model;
Fig. 6 is a schematic perspective view according to terminals subrack of the present utility model;
Fig. 7 is another schematic perspective view according to terminals subrack of the present utility model;
Fig. 8 illustrates the schematic diagram according to the Embedding Material path on the second surface of terminals subrack of the present utility model; And
Fig. 9 is the explanatory view of the Embedding Material layer formed after employing carries out embedding according to terminals subrack of the present utility model to the intermediate connector in explosion-proof device and electronic device.
Embodiment
Be only exemplary to the description of the various embodiments of the utility model below, and be never the restriction to the utility model and application or usage.Adopt identical Reference numeral to represent identical parts in various figures, therefore, the structure of same parts is by no longer repeated description.
As previously mentioned, terminals subrack is for explosion-proof device, play the effect of the electronic device connecting outside cable and explosion-proof device inside on the one hand, on the other hand, it is for pouring into Embedding Material in the gap between the composition surface to associated components, with the isolation of the electronic device and explosion-proof device external environment condition that realize explosion-proof device inside, play the effect of flame proof.
As shown in Figure 1-Figure 3, be preferably applied to according to terminals subrack of the present utility model the explosion-proof device being wherein provided with intermediate connector 2 described as follows.This intermediate connector 2 is connected between the electronic device (as circuit board) 3 in terminals subrack 1 and explosion-proof device.Usually, the multiple through holes corresponding with each contact pin mouth on electronic device to be connected 3 are provided with in this intermediate connector 2.Outside contact pin P realizes being electrically connected with electronic device 3 through after the pin holes in terminals subrack 1 and the through hole on intermediate connector 2 successively.The gap of Embedding Material after terminals subrack 1 is injected between the through hole by the gap between terminals subrack 1 and intermediate connector and contact pin P and intermediate connector 2 is injected between intermediate connector 2 and electronic device 3.In order to increase flame proof effect further; usually also communication groove (not shown) is set on the surface of electronic device 3 faced by intermediate connector 2, the Embedding Material be injected between intermediate connector 2 and electronic device 3 can be back in each through hole of intermediate connector 2 via this communication groove.After embedding completes, in communication groove, form Embedding Material layer, because the area of this part Embedding Material layer is comparatively large, therefore contribute to the explosion insulation performance improving explosion-proof device.In addition, as shown in Figure 1, the sidewall of intermediate connector 2 is provided with embedding monitoring part interface 21, this embedding monitoring part interface 21 is connected with embedding monitoring part 4, whether complete so that monitor embedding in potting process, if observe Embedding Material in potting process to flow out and certain time in the outlet of embedding monitoring part 4, just can think that embedding completes.
Connection status schematic diagram as shown in Figure 2 between the contact pin that uses of explosion-proof device and circuit board (being only example herein, can be other electronic device).Fig. 3 shows the annexation between circuit board, contact pin and terminals subrack.For ease of the annexation between the electronic device in observation terminals subrack and contact pin and explosion-proof device or position relationship, in Fig. 3, eliminate intermediate connector.
As shown in Figures 2 and 3, the multiple contact pin P from outside are plugged in together with circuit board 3 via terminals subrack 1 and intermediate connector (not shown).Those skilled in the art it is understood that, the quantity of the contact pin mouth on circuit board 3 and arrange concrete condition according to explosion-proof device and its external equipment and determine, the quantity of the pin holes in terminals subrack 1 and the quantity of the through hole in layout and intermediate connector and arrange with the quantity of the contact pin mouth on circuit board with arrange consistent.Therefore, the quantity of pin holes in the utility model not on pair of wire connection terminals frame and the particular location of pin holes do too much restriction.Similarly, although be mainly described in conjunction with the application of terminals subrack in explosion-proof device in the following description, but terminals subrack of the present utility model is also not limited to and is applied in explosion-proof device, in the equipment that also can be applied to other according to actual needs or device.
Be described in detail according to terminals subrack of the present utility model and explosion-proof device with regard to composition graphs 1-Fig. 9 below.
Fig. 4 and Fig. 5 respectively illustrates each other relative first surface of terminals subrack 1 according to preferred implementation of the present utility model and the schematic diagram of second surface.Fig. 6 and Fig. 7 respectively illustrates the schematic perspective view of two different angles of the terminals subrack 1 according to preferred implementation of the present utility model.
As shown in the figure, have according to terminals subrack 1 of the present utility model: each other relative first surface 11 and second surface 12; Run through first surface 11 and second surface 12 and multiple pin holes of being formed, the plurality of pin holes can be divided into first group of pin holes 14 and second group of pin holes 15, and first group of pin holes 14 and second group of pin holes 15 fluidly separate each other in the region of terminals subrack 1; And Embedding Material hand-hole 16, this Embedding Material hand-hole 16 runs through first surface 11 and second surface 12 and is formed and be communicated with each pin holes fluid in first group of pin holes 14.
As previously mentioned, the quantity of the shape of terminals subrack or the pin holes on it and concrete layout are determined according to the actual conditions of its explosion-proof device applied or miscellaneous equipment.Those skilled in the art it is understood that, when terminals subrack is applied on explosion-proof device, usually carry out the perfusion of Embedding Material towards the direction on its another surface from a surface of terminals subrack, therefore, in this article, terminals subrack treated that the surface of carrying out the perfusion of Embedding Material via it is called first surface, and terminals subrack treated that the surface engaged with the intermediate connector in explosion-proof device or electronic device is called second surface.
According to actual conditions, each in first group of pin holes 14 and second group of pin holes 15 can comprise one or more pin holes.First group of pin holes 14 is fluidly separated with second group of pin holes 15 pin holes referred in first group of pin holes 14 each other and can not be directly fluidly communicated with by terminals subrack each other with the pin holes in second group of pin holes 15 in the region of terminals subrack 1.As previously mentioned, Embedding Material hand-hole 16 runs through first surface 11 and second surface 12 and is formed and be communicated with each pin holes fluid in first group of pin holes 14.Because first group of pin holes 14 can not fluidly be communicated with in the region of terminals subrack 1 with second group of pin holes 15, therefore, the Embedding Material injected via Embedding Material hand-hole 16 can not be fed directly to each pin holes of second group of pin holes 15.
Contact pin to explosion-proof device to be connected is inserted in above-mentioned first group of pin holes 14 and second group of pin holes 15, therefore, is understandable that, the diameter of these pin holes 14,15 and the diameter matches of contact pin treating grafting.Preferably, the diameter of second group of pin holes 15 is arranged to be interference fit between each contact pin and corresponding pin holes.So, contribute to improving embedding reliability.
In addition, according to the needs of practical application, also the multiple pin holes in terminals subrack can be divided into three or more pin holes groups, but, according to the utility model, a pin holes group in multiple pin holes group at least should be made fluidly not to be communicated with by binding post frame with other pin holes group.
In order to the fluid realized between Embedding Material hand-hole 16 with each pin holes in first group of pin holes 14 is communicated with, preferably, the first recess 121 can be formed on second surface 12, and each pin holes in first group of pin holes 14 be arranged in this first recess 121 and via this first recess 121 and be fluidly communicated with each other, thus each pin holes in first group of pin holes 14 can be communicated with by fluid each other.Preferably, Embedding Material hand-hole 16 can be made to be communicated with this first recess 121 fluid, thus the fluid realized between Embedding Material hand-hole 16 with each pin holes in first group of pin holes 14 is communicated with.
Certainly, also other configuration can be adopted, such as, Embedding Material hand-hole 16 can deviate from the position at each pin holes place in first group of pin holes 14, and is communicated with by the fluid that the embedding runner arranged in addition realizes between Embedding Material hand-hole 16 with first group of pin holes 14.For each pin holes in first group of pin holes 14, connectivity slot can be set between successive pins hole, thus the fluid realized between these pin holes is communicated with.
Alternatively, second surface 12 can also be formed with the second recess 122 arranged with the first recess 121 compartment of terrain, and second group of pin holes 15 is arranged in the second recess 122 and via the second recess 122 fluid communication with each other.So, the physical isolation between two groups of pin holes is just achieved by the rib 19 be formed between two recess.
Alternatively, far-end pin holes 151 is included in second group of pin holes 15.This far-end pin holes 151 is each pin holes middle distance Embedding Material hand-hole 16 pin holes farthest of second group of pin holes 15 on the flow direction of Embedding Material.So, sufficient embedding is carried out in the gap between being conducive to associated components, thus greatly improves the flame proof reliability of the product that embedding obtains.
Alternatively, far-end pin holes 151 is arranged to further near embedding monitoring part interface.According to actual conditions, embedding monitoring part interface can be formed in terminals subrack 1 or be formed on the intermediate connector 2 of the second surface 12 being engaged to terminals subrack 1.
By the configuration of above-mentioned further improvement, owing to including far-end pin holes 151 in second group of pin holes 15, and this far-end pin holes 151 is not only near monitoring part interface in embedding, and be second group of pin holes 15 each pin holes on the flow direction of Embedding Material distance Embedding Material hand-hole 16 pin holes farthest, so, the abundant embedding in the gap between can farthest realizing associated components, thus be conducive to the explosion-proof reliability and the conforming product rate that improve the structure that embedding obtains.
According in concrete example of the present utility model, as shown in the figure, alternatively, terminals subrack 1 has umbrella shape shape, and this umbrella shape shape comprises umbrella handle portion 13 and umbrella cover portion 17.Wherein, first group of pin holes 14 comprise be positioned at terminals subrack 1 umbrella handle portion 13 on and at least one pin holes (such as illustrated two pin holes 141,142) of arranging along umbrella handle portion 13 and at least one pin holes (such as illustrated two pin holes 143,144) be positioned in the umbrella cover portion 17 of terminals subrack 1.Second group of pin holes 15 comprises and is positioned at aforesaid far-end pin holes 151 in umbrella cover portion 17 and at least one other pin holes (as illustrated other four pin holes 152,153,154,155).In addition, the pin holes (143,144) be positioned in umbrella cover portion 17 in the pin holes in second group of pin holes 15 and first group of pin holes 14 is arranged along the curved edge in umbrella cover portion 17.Certainly, be understandable that, before to the quantity of the pin holes on beveled structure and the description of arrangement form just illustrative, and not restrictive.
When example arrangement shown in the figure, each pin holes 151,152,153,154,155 in each pin holes 141,142,143, the 144 and second group of pin holes 15 in first group of pin holes 14 is arranged in the first recess 121 and the second recess 122.
Alternatively, the position of Embedding Material hand-hole 16 can be made to be close to the composition surface in umbrella handle portion 13 and umbrella cover portion 17.Namely, Embedding Material hand-hole 16 is arranged in the position placed in the middle relative to each pin holes that can be communicated with it as far as possible, so, when injecting Embedding Material by Embedding Material hand-hole 16, Embedding Material substantially can along the isometric embedding path flow be formed between terminals subrack and intermediate connector, and flow in the through hole corresponding with each pin holes in first group of pin holes of intermediate connector further, thus reduce the length in embedding path as much as possible, improve embedding efficiency.
Alternatively, the upper surface 1411,1421,1431,1441,1511,1521,1531,1541,1551 (see Fig. 7) being positioned at first surface 11 of each pin holes 141,142,143,144,151,152,153,154,155 in first group of pin holes 14 and second group of pin holes 15 is recessed relative to first surface 11.Layout like this, can form certain spacer structure between the upper surface in successive pins hole, is conducive to aiming at the insertion of contact pin, meanwhile, also helps the weight alleviating terminals subrack, saves material.
Similarly, alternatively, terminals subrack 1 is also provided with reduced thickness region 18, this reduced thickness region 18 is positioned at the region except first group of pin holes 14 and second group of pin holes 15 region in terminals subrack 1.And alternatively, this reduced thickness region 18 comprises the one or more recess be formed on second surface 12, three recess 181,182,183 as shown in figure Fig. 7.
Alternatively, terminals subrack is made of plastics, and is beneficial to the object realizing flame proof.
By above-mentioned configuration, when by pouring into Embedding Material according to terminals subrack 1 of the present utility model in the intermediate connector 2 in explosion-proof device, the gap that the Embedding Material injected via Embedding Material hand-hole 16 will inject along the first recess 121 be formed on terminals subrack 1 second surface between terminals subrack 1 and intermediate connector 2.Then, Embedding Material is by the gap between the through hole corresponding with each pin holes (as 141 in figure, 142,143,144) in first group of pin holes 14 that flow in intermediate connector 2 and contact pin.Then, in the space that Embedding Material can be injected in intermediate connector 2 and explosion-proof device between electronic device 3 further via these through holes of intermediate connector 2.Owing to being provided with communication groove on the second surface relative with this electronic device 3 of intermediate connector 2, Embedding Material is oppositely flowed by this communication groove by the through hole corresponding with each pin holes in second group of pin holes on intermediate connector 2, thus carries out embedding to each through hole in intermediate connector 2, the gap between intermediate connector 2 and terminals subrack 1 and the gap between intermediate connector 2 and electronic device 3.Therefore, adopt terminals subrack of the present utility model, by by physically spaced apart for group pin holes of two in terminals subrack, make the Embedding Material injected from Embedding Material hand-hole 16 along the corresponding through hole of the intermediate connector below predetermined path flow into and the gap between intermediate connector 2 and electronic device 3, then oppositely flow into again in the through hole corresponding with second group of pin holes in intermediate connector, so, farthest can discharge the gas in embedding path, prevent from producing bubble in Embedding Material layer.
And, when having aforesaid second group pin holes 15, because far-end pin holes 151 is not only near in embedding monitoring part interface, and be second group of pin holes 15 each pin holes on the flow direction of Embedding Material distance Embedding Material hand-hole 16 pin holes farthest.Therefore, it is possible to the abundant embedding in gap between farthest realizing associated components, thus be conducive to the explosion-proof reliability and the conforming product rate that improve the structure that embedding obtains.
The utility model also relates to the explosion-proof device comprising aforesaid terminals subrack 1.According to actual needs, other intermediate connection structure can be provided in this explosion-proof device, with the requirement of explosion proof making the structure after embedding meet explosion-proof device.Certainly, according to actual conditions, also can only adopt according to terminals subrack of the present utility model, and inapplicable other intermediate connection structure any.
Further, above-mentioned explosion-proof device also comprises intermediate connector 2.Terminals subrack 1 is engaged to the first surface of intermediate connector 2, and intermediate connector 2 is engaged to the wiring board 3 in explosion-proof device further by its second surface.And wherein, intermediate connector 2 is provided with the multiple through holes corresponding with the contact pin mouth on wiring board, the second surface of intermediate connector 2 is provided with the communication groove be communicated with multiple through hole.In addition, the first group of pin holes 14 in terminals subrack 1 and each pin holes in second group of pin holes 15 and the multiple through hole one_to_one corresponding on intermediate connector 2.Certainly, be understandable that, the sidewall of intermediate connector 2 can be provided with embedding monitoring part interface 21, for connecting embedding monitoring part (L shape connector 4 as shown in Figure 1) of whether overflowing for monitoring Embedding Material.
To sum up, the binding post shelf structure that the utility model provides, can when not changing the structure of existing explosion-proof device internal components and intermediate connector and do not cause excessive variation to customer interface, realize the abundant perfusion of Embedding Material in associated gap, the structure that embedding is obtained can meet the flame proof requirement of equipment.
Be described utilizing the filling process carrying out Embedding Material according to terminals subrack of the present utility model with regard to composition graphs 1-Fig. 9 below.
Fig. 8 shows an example of the circulation path of the Embedding Material in terminals subrack of the present utility model.As shown in the figure, when pouring into Embedding Material in the gap between composition surface mutual to contact pin, terminals subrack 1, intermediate connector 2 and wiring board 3 via Embedding Material hand-hole 16 on the first surface 11 of terminals subrack 1, shown in the arrow in figure 8, Embedding Material flow to via the first recess 121 be formed on second surface 12 in the gap between this first recess 121 and intermediate connector 2 of terminals subrack 1.Then, with further reference in Fig. 1 shown in arrow, Embedding Material can flow into further in intermediate connector 2 with each pin holes 141 of this first group of pin holes 14,142,143, in 144 corresponding through holes, and flow in the communication groove on the second surface of intermediate connector 2 further; Then, Embedding Material again the communication groove via intermediate connector is oppositely flowed into intermediate connector with each pin holes 151 in second group of pin holes 15,152,153,154, in 155 corresponding through holes, and to flow into further in the gap formed between the second recess 122 and intermediate connector 2.Meanwhile, Embedding Material also can flow in the embedding monitoring part 4 be formed on intermediate connector 2, when through observing, when Embedding Material flows out within a certain period of time constantly in this embedding monitoring part 4, just can determine that embedding completes.
Fig. 9 exemplarily illustrates the Embedding Material layer formed after employing carries out embedding according to terminals subrack of the present utility model to the intermediate connector in explosion-proof device and electronic device.In order to help to observe embedding effect, in Fig. 9, eliminate the terminals subrack and intermediate connector material and contact pin that cover on outside.In Fig. 9 40 is for being formed in the material layer in aforesaid embedding monitoring part 4, and in practice, after embedding terminates, this part will be removed.As can be seen from Figure 9, adopt according to terminals subrack of the present utility model, farthest can realize the embedding to gap between associated splice face, drastically increase the flame proof reliability of Embedding Material layer.
Although describe numerous embodiments of the present utility model above with reference to Fig. 1-9, but it should be appreciated by those skilled in the art, further modification and/or improvement can be made to aspects more of the present utility model, therefore, terminals subrack of the present utility model can directly apply on the electronic device in explosion-proof device.Such as, terminals subrack of the present utility model can be not limited to be applied to aforesaidly to be had in the explosion-proof device of intermediate connector, when terminals subrack being directly applied to the electronic device in explosion-proof device, can under the prerequisite making each contact pin in second group of pin holes 15 directly not be communicated with each contact pin in first group of pin holes 14, the second recess 122 on terminals subrack second surface 12 is communicated with by a recessed fluid with the first recess 121, make the Embedding Material be collected between terminals subrack and electronic device can flow in the second recess 122 further via this groove, thus the perfusion realized in Embedding Material to the second recess 122 in each pin holes.
Although described various execution mode of the present utility model in detail at this, but should be appreciated that, the utility model is not limited to the embodiment described in detail and illustrate here, can be realized other modification and variant when not departing from essence of the present utility model and scope by those skilled in the art.All these modification and variant all fall in scope of the present utility model.And all components described here can be replaced by component equivalent in other technologies.
Claims (16)
1. a terminals subrack (1), is characterized in that, described terminals subrack (1) comprising:
Each other relative first surface (11) and second surface (12);
First group of pin holes (14) and second group of pin holes (15), each pin holes in described first group of pin holes (14) and described second group of pin holes (15) runs through described first surface (11) and described second surface (12), and described first group of pin holes (14) and described second group of pin holes (15) fluidly separate each other in the region of described terminals subrack (1); And
Embedding Material hand-hole (16), described Embedding Material hand-hole (16) is run through described first surface (11) and described second surface (12) and is formed and be communicated with each pin holes fluid in described first group of pin holes (14).
2. terminals subrack (1) according to claim 1, is characterized in that,
Described second surface (12) is formed with the first recess (121), described first group of pin holes (14) is arranged in described first recess (121) and via described first recess (121) fluid communication with each other.
3. terminals subrack (1) according to claim 2, is characterized in that, described Embedding Material hand-hole (16) is communicated with described first recess (121) fluid.
4. terminals subrack (1) according to claim 3, is characterized in that,
Described second surface (12) is also formed with the second recess (122) arranged with described first recess (121) compartment of terrain, and described second group of pin holes (15) is arranged in described second recess (122) and via described second recess (122) fluid communication with each other.
5. terminals subrack (1) according to claim 4, it is characterized in that, described first recess (121) and described second recess (122) via the rib (19) be formed between described first recess (121) and described second recess (122) in the region of described terminals subrack (1) each other fluid separate.
6. terminals subrack (1) according to claim 5, it is characterized in that, include far-end pin holes (151) in described second group of pin holes (15), described far-end pin holes (151) on the flow direction of Embedding Material be described second group of pin holes (15) each pin holes middle distance described in Embedding Material hand-hole (16) pin holes farthest.
7. terminals subrack (1) according to claim 6, it is characterized in that, described far-end pin holes (151) is arranged near embedding monitoring part interface, and described embedding monitoring part interface is formed on described terminals subrack (1) or is formed on the intermediate connector (2) of the described second surface (12) being engaged to described terminals subrack (1).
8. terminals subrack (1) according to claim 6, it is characterized in that, described terminals subrack (1) has umbrella shape shape, and described umbrella shape shape comprises umbrella handle portion (13) and umbrella cover portion (17), and wherein
Described first group of pin holes (14) comprises the umbrella handle portion (13) being positioned at described terminals subrack (1) and goes up and at least one pin holes (141 of arranging along described umbrella handle portion (13), 142) and at least one pin holes (143,144) be positioned in the umbrella cover portion (17) of described terminals subrack (1); Described second group of pin holes (15) comprises and is positioned at described far-end pin holes (151) on described umbrella cover portion (17) and at least one other pin holes (152,153,154,155); And described second group of pin holes (15) is arranged along the curved edge of described umbrella cover portion (17) with the pin holes (143,144) be positioned on described umbrella cover portion (17) in described first group of pin holes (14).
9. terminals subrack (1) according to claim 8, is characterized in that,
Described Embedding Material hand-hole (16) is close to the composition surface of described umbrella handle portion (13) and described umbrella cover portion (17).
10. terminals subrack (1) according to claim 1, it is characterized in that, each pin holes (141,142,143 in described first group of pin holes (14) and described second group of pin holes (15), 144,151,152,153,154,155) the upper surface (1411,1421,1431 being positioned at described first surface (11), 1441,1511,1521,1531,1541,1551) recessed relative to described first surface (11).
11. terminals subracks (1) according to any one of claim 1-10, it is characterized in that, described terminals subrack (1) is also provided with reduced thickness region (18), and described reduced thickness region (18) are positioned at the region except described first group of pin holes (14) and described second group of pin holes (15) region on described terminals subrack (1).
12. terminals subracks (1) according to claim 11, is characterized in that,
Described reduced thickness region (18) comprises the one or more recess (181,182,183) be formed on described second surface (12).
13. terminals subracks (1) according to claim 12, it is characterized in that, waiting to be plugged between contact pin in described first group of pin holes (14) and described second group of pin holes (15) and corresponding pin holes is interference fit.
14. terminals subracks (1) according to claim 13, it is characterized in that, described terminals subrack is made of plastics.
15. 1 kinds of explosion-proof devices, is characterized in that, described explosion-proof device comprises the terminals subrack (1) according to any one in claim 1-14.
16. explosion-proof devices according to claim 15, it is characterized in that, described explosion-proof device also comprises intermediate connector (2), described terminals subrack (1) is engaged to the first surface of described intermediate connector (2), the second surface of described intermediate connector (2) is engaged to the wiring board (3) in described explosion-proof device, and wherein
Described intermediate connector (2) being provided with the multiple through holes corresponding with the contact pin mouth on described wiring board (3), the described second surface of described intermediate connector (2) being provided with the communication groove for making described multiple through hole be communicated with; And
Described first group of pin holes (14) on described terminals subrack (1) and each pin holes in described second group of pin holes (15) and the described multiple through hole one_to_one corresponding on described intermediate connector (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520372664.0U CN204668589U (en) | 2015-06-02 | 2015-06-02 | Terminals subrack and explosion-proof device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520372664.0U CN204668589U (en) | 2015-06-02 | 2015-06-02 | Terminals subrack and explosion-proof device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204668589U true CN204668589U (en) | 2015-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520372664.0U Withdrawn - After Issue CN204668589U (en) | 2015-06-02 | 2015-06-02 | Terminals subrack and explosion-proof device |
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| Country | Link |
|---|---|
| CN (1) | CN204668589U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106299866A (en) * | 2015-06-02 | 2017-01-04 | 高准有限公司 | Terminals subrack and explosion-proof device |
-
2015
- 2015-06-02 CN CN201520372664.0U patent/CN204668589U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106299866A (en) * | 2015-06-02 | 2017-01-04 | 高准有限公司 | Terminals subrack and explosion-proof device |
| CN106299866B (en) * | 2015-06-02 | 2018-09-18 | 高准有限公司 | Terminals subrack and explosion-proof device |
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