CN213715161U - Fill frock - Google Patents

Abstract

The utility model belongs to the technical field of the assembly that fills, concretely relates to fill frock. The pouring tool is used for connecting the shell with a workpiece positioned in the shell through a connecting piece, the pouring tool comprises a supporting column, and a third positioning hole for positioning the workpiece is axially formed in the supporting column; the third positioning hole is a blind hole, and the depth of the third positioning hole is smaller than the length of the workpiece; the height of support column is less than the highly messenger's cover of shell is established form between the outside shell of support column and the work piece and fill the space, fill the connecting piece that has fluid state in the space that fills, will after the connecting piece cooling the shell with the work piece is connected. The utility model discloses the effectual current work piece assembly with the shell with being located the shell that has the problem of inefficiency when being in the same place of solution.

Description

Fill frock

Technical Field

The utility model belongs to the technical field of the assembly that fills, concretely relates to fill frock.

Background

At present, when the shell is connected with a workpiece positioned in the shell, glue is coated on the connecting piece in an adopted mode, and then the connecting piece is installed in a gap formed by the shell and the workpiece.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that there is inefficiency when present with the shell with the work piece assembly that is located the shell, the utility model provides a fill frock.

The utility model discloses a realize through following scheme:

a perfusion tool is used for connecting a shell with a workpiece positioned in the shell through a connecting piece,

the pouring tool comprises a support column, and a third positioning hole for positioning the workpiece is axially formed in the support column; the third positioning hole is a blind hole, and the depth of the third positioning hole is smaller than the length of the workpiece; the height of support column is less than the highly messenger's cover of shell is established form between the outside shell of support column and the work piece and fill the space, fill the connecting piece that has fluid state in the space that fills, will after the connecting piece cooling the shell with the work piece is connected.

It is right the utility model discloses a further improvement part of pouring into frock lies in, the shell global with the support column global between seamless.

The perfusion tool of the utility model is further improved in that the perfusion tool also comprises a base; the base is provided with a groove, and the support column is vertically arranged in the groove.

It is right the utility model discloses a further improvement part of pouring into frock lies in, the edge orientation of recess the bottom of recess is injectd there is spacing platform.

Compared with the prior art, adopt above-mentioned scheme the beneficial effects of the utility model are that:

when the perfusion tool is used, a workpiece is firstly inserted into the third positioning hole, and then the shell is sleeved outside the support column; because the depth of the third positioning hole is smaller than the length of the workpiece and the height of the supporting column is smaller than that of the shell, a pouring workpiece is formed between the upper part of the shell and the upper part of the workpiece at the moment; fill fluid state's connecting piece into and fill the space in, treat the connecting piece cooling back, the connecting piece is connected shell and work piece with just succeeding in, adopts the utility model discloses a fill frock can be quick be connected the shell with the work piece that is located the shell, solved present with the shell with be located the work piece assembly when there is the inefficiency problem in the shell.

Drawings

FIG. 1 is a schematic view of an assembly structure of an oxygen sensor provided by the present invention;

FIG. 2 is a schematic cross-sectional view of section A-A of FIG. 1;

fig. 3 is a schematic view of an assembly structure of a detection unit and a signal line assembly of an oxygen sensor according to the present invention;

FIG. 4 is an enlarged schematic view of the structure at B in FIG. 3;

fig. 5 is a schematic structural diagram of a fixing member of an oxygen sensor provided by the present invention;

FIG. 6 is a flow chart of a process for manufacturing an oxygen sensor according to the present invention;

fig. 7 is a schematic structural diagram of a wire bonding tool applied in the manufacturing process of the oxygen sensor provided by the present invention;

FIG. 8 is a schematic cross-sectional view of section C-C of FIG. 7;

fig. 9 is a schematic structural diagram of the assembly of the detection unit and the signal line assembly onto the wire bonding tool in the manufacturing process of the oxygen sensor provided by the present invention;

FIG. 10 is an enlarged schematic view of the structure shown in FIG. 9 at another perspective D;

fig. 11 is a schematic structural diagram of a perfusion tool applied in the manufacturing process of the oxygen sensor provided by the present invention;

fig. 12 is a schematic view of an assembly structure for inserting the detection unit of the semi-finished product into the third positioning hole;

FIG. 13 is a schematic view of an assembly structure in which the protective shell is fitted over the support posts;

FIG. 14 is a schematic view of the assembly of the housing assembly to the potting fixture;

FIG. 15 is a cross-sectional view of section E-E of FIG. 14;

fig. 16 is a schematic sectional view showing the insulating connector poured into the pouring space.

In the figure, 1, a detection unit; 2. a housing assembly; 3. a signal line assembly; 4. an insulating connector; 5. wire bonding tooling; 6. pouring a tool; 21. a protective shell; 22. a connecting portion; 31. a signal line; 32. a fixing member; 321. a signal line positioning hole; 322. a limiting bulge; 51. a tool body; 511. a first positioning hole; 512. a second positioning hole; 513. dispensing windows; 514. a limiting groove; 61. a support pillar; 62. a base; 621. a groove; 622. and a limiting table.

Detailed Description

In order to make the above objects, features, advantages, etc. of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "axial", "radial", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The meaning of "plurality" is two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Example 1

The present embodiment provides an oxygen sensor for a home appliance, as shown in fig. 1 and 2, including a detection unit 1 for detecting an oxygen concentration, a housing assembly 2, a signal wire assembly 3, and an insulating connector 4;

the shell component 2 is sleeved outside the detection unit 1 to form a gap, and the shell component 2 is connected with the household appliance; the detection unit 1 is electrically connected with the signal wire assembly 3; an insulating connector 4 is provided in the gap for connecting the detection unit 1 and the housing assembly 2.

Since the oxygen sensor of the present embodiment includes only the detection unit 1, the housing assembly 2, the signal wire assembly 3, and the insulating connector 4, the structure thereof is simple compared to that of a vehicle oxygen sensor, and therefore, the cost is low. The shell component 2 is sleeved outside the detection unit 1, the shell component 2 not only plays a role in protecting the detection unit 1, but also the shell component 2 can be connected with a household appliance; meanwhile, the detection unit 1 is electrically connected with the signal line assembly 3; the insulating connecting piece 4 is arranged in the gap and used for connecting the detection unit 1 and the shell component 2, so that the oxygen sensor of the embodiment is installed on the household appliance through the shell component 2, and the problem that the cost of the household appliance is high due to the fact that the existing oxygen sensor for the automobile is used on the household appliance is effectively solved.

In addition, the insulating connector 4 of the present embodiment is to connect the housing assembly 2 and the detecting unit 1 to form a whole, and to avoid charging the housing assembly 2.

Preferably, the insulating connecting body 4 is made of plastic, rubber, or the like, in consideration of the necessity of having good insulation. In addition, considering the difference of the application environment of the oxygen sensor of the present embodiment, for example, when the oxygen sensor of the present embodiment is applied to a steam oven, the temperature of the steam oven is high, so the insulating connecting body 4 is required to have a good high temperature resistance.

In the present embodiment, the detecting unit 1 is electrically connected to the signal line assembly 3 through a conductive adhesive; on one hand, the conductive adhesive has a conductive function; on the other hand, for the purpose of processing, for example, the detection unit 1 can be directly connected with the signal wire assembly 3 by using a dispensing device; the detection unit 1 and the signal line assembly 3 can be electrically connected by the conductive adhesive by bare hands. In addition, considering the application scenario of the oxygen sensor of this embodiment, for example, when the oxygen sensor of this embodiment is applied in a steamer, the conductive adhesive needs to have better high temperature resistance while having better conductivity.

Preferably, the insulating connector 4 is further connected to the signal line assembly 3 electrically connected to the detecting unit 1, in order to enhance the fixation of the signal line assembly 3 to the detecting unit 1 while connecting the housing assembly 2 to the detecting unit 1.

In this embodiment, the housing assembly 2 is sleeved outside the detection unit 1 to form an annular gap. Since the housing assembly 2 is usually made of stainless steel and has a certain conductivity, if the housing assembly 2 and the detecting unit 1 are in direct contact, the housing assembly 2 may be electrified, so to avoid this problem, in this embodiment, the housing assembly 2 is sleeved outside the detecting unit 1 to form an annular gap, which at least has air between the housing assembly 2 and the detecting unit 1, and the air is an insulator under a voltage of 220V.

Preferably, the detecting unit 1 includes a chip for detecting the oxygen concentration, and the chip may be a ceramic chip; the chip output terminal is electrically connected to the signal line assembly 3.

Further, a housing assembly 2 for protecting the detection unit 1 and also for interfacing with household appliances;

the housing assembly 2 includes a protective case 21, and a connection portion 22 mounted on the protective case 21;

the protective shell 21 is sleeved outside the detection unit 1 to form an annular gap; the connection part 22 is connected with the home appliance.

A vent hole 211 is provided in the circumferential direction of the protective case 21, and the purpose of the vent hole 211 is to allow air to pass through to contact a detection region of the detection unit 1 located inside the protective case 21.

Since the detection area of the detection unit 1 is usually located at the other end away from the signal line assembly 3, the vent hole 211 is also located at the other end of the protective casing 21 away from the signal line assembly 3, in order to allow the air to contact the detection area of the detection unit 1 as quickly as possible, thereby quickly detecting the oxygen concentration.

Connecting portion 22 is the ring flange, and the ring flange is riveted with protective housing 21, is connected shell subassembly 2 and domestic appliance through the ring flange, compares in the oxygen sensor thread tightening mode for the car, has simplified the processing technology of oxygen sensor, and then has reduced the processing cost.

Further, the signal line assembly 3 includes a signal line 31; the signal line 31 is electrically connected to the detecting unit 1, as shown in fig. 3 and 4. The signal wire 31 is externally wrapped with an insulating layer, preferably a nickel-plated copper core fluoroplastic high-temperature wire. One end metal core of the signal line 31 is exposed, and the exposed metal core is electrically connected with the chip of the detection unit 1 through the conductive adhesive and used for outputting the detection result of the chip.

As shown in fig. 5, the signal line assembly 3 further includes a fixing member 32; the fixing member 32 is axially provided with a signal line positioning hole 321, and one end of the signal line 31 passes through the signal line positioning hole 321 to be electrically connected with the detecting unit 1. The signal line 31 is limited in the signal line positioning hole 321 for the sake of appearance and processing.

The fixing member 32 is circumferentially provided with a limiting protrusion 322, and a workpiece assembled with the fixing member 32 is provided with a limiting groove 514; or the fixing member 32 is provided with a limit groove 514 in the circumferential direction and a limit protrusion 322 is provided on the workpiece assembled with the fixing member 32.

The workpiece assembled with the fixing member 32 may be a household appliance, or may be other tools, such as a wire bonding tool 5.

Example 2

The embodiment provides a manufacturing process of an oxygen sensor, as shown in fig. 6, the process includes the following steps:

and S1, electrically connecting the detection unit 1 with the signal wire assembly 3 to obtain a semi-finished product.

S2, mounting the insulating connector 4 in the gap for connecting the detecting unit 1 and the housing assembly 2.

The above steps of this embodiment can be directly operated by bare hands, for example, the chip of the detection unit 1 and the signal line 31 of the signal line assembly 3 are electrically connected by the conductive adhesive by bare hands, so as to obtain a semi-finished product. For example, glue is applied to the insulating connector 4, and then the insulating connector 4 is mounted in the gap, and the insulating connector 4 is connected to the housing assembly 2 rather than the detection unit 1.

Further, the semi-finished product can be manufactured by a contact tool, in this embodiment, the chip of the detection unit 1 is electrically connected with the signal line 31 of the signal line assembly 3 through the wire bonding tool 5 by conductive adhesive, and after the conductive adhesive is cooled and solidified, the semi-finished product is obtained.

Sleeving a protective shell 21 of the shell assembly 2 on a pouring tool 6, inserting the semi-finished detection unit 1 into the pouring tool 6 arranged in the protective shell 21, forming a pouring space between the protective shell 21 and the pouring tool 6, and positioning part of chips in the pouring space;

and (3) pouring the insulation connecting piece 4 in the fluid state into the pouring space, and obtaining the oxygen sensor after the insulation connecting piece 4 in the fluid state is cooled and solidified.

Further, as shown in fig. 7 and 8, the wire bonding tool 5 includes a tool body 51; the tool body 51 is provided with a first positioning hole 511 for positioning the detection unit 1, a second positioning hole 512 for positioning the fixing member 32, and a dispensing window 513;

the dispensing windows 513 are communicated with the first positioning holes 511 and the second positioning holes 512 for electrically connecting the chips of the detecting unit 1 with the signal lines 31 through conductive adhesives.

As shown in fig. 9 and 10, in use, the chip of the detection unit 1 is inserted into the first positioning hole 511 so that the output terminal of the chip is positioned in the dispensing window 513; meanwhile, the fixing member 32 is inserted into the second positioning hole 512, so that the signal line 31 with the exposed metal wire is also positioned in the dispensing window 513; then, the signal line 31 is aligned with the output terminal of the chip, the liquid conductive adhesive is dotted at the connection between the signal line 31 and the output terminal of the chip to electrically connect the signal line 31 of the signal line assembly 3 and the chip of the detection unit 1, and after the conductive adhesive is cooled, the conductive adhesive is taken out to obtain a semi-finished product, as shown in fig. 3.

Preferably, the tool body 51 is further provided with a limiting groove 514; the limiting groove 514 is communicated with the second positioning hole 512, and the limiting groove 514 is connected with the limiting protrusion 322 in a limiting way.

When the fixing member 32 is inserted into the second positioning hole 512, the circumferential limiting protrusion 322 of the fixing member 32 is limited in the limiting groove 514, so that the fixing member 32 is limited, and the fixing member 32 is prevented from entering the dispensing window 513 entirely.

Preferably, the first positioning hole 511 and the second positioning hole 512 are respectively disposed on two opposite sides of the dispensing window 513, and the first positioning hole 511 and the second positioning hole 512 are coaxially disposed, as shown in fig. 8.

The area of the axial cross section of the second positioning hole 512 is larger than the area of the axial cross section of the first positioning hole 511.

After the conductive adhesive is cooled, the fixing member 32 of the signal line assembly 3 is pulled out from the second positioning hole 512, and then the chip of the detection unit 1 is driven to sequentially pass through the first positioning hole 511 and the dispensing window 513, and finally pulled out from the second positioning hole 512.

Further, as shown in fig. 11, the pouring tool 6 includes a supporting column 61, and a third positioning hole 611 is axially formed in the supporting column 61; the third positioning hole 611 is a blind hole, and the depth of the third positioning hole 611 is smaller than the length of the chip; the height of the support column 61 is smaller than the height of the protective case 21.

When in use, the chip of the detection unit 1 is inserted into the third positioning hole 611, as shown in fig. 12, because the depth of the third positioning hole 611 is smaller than the length of the chip, the upper part of the chip is outside the third positioning hole 611; then, the protective shell 21 is sleeved outside the supporting column 61, as shown in fig. 13, since the height of the supporting column 61 is smaller than the height of the protective shell 21, a filling space is formed between the supporting column 61 and the protective shell 21.

Preferably, there is no gap between the peripheral surface of the protective case 21 and the peripheral surface of the support post 61, and a pouring space is formed between the upper end surface of the protective case 21 and the upper end surface of the support post 61, as shown in fig. 15. The insulation connecting piece 4 in a fluid state is poured into the pouring space, after cooling, the protection shell 21 and the detection unit 1 are connected through the solid insulation connecting piece 4, and meanwhile, the fixation of the detection unit 1 and the signal wire 32 is strengthened.

The pouring tool 6 further comprises a base 62; a groove 621 is arranged on the base 62, and a limit table 622 is defined at the edge of the groove 621 facing the bottom of the groove 621; the support post 61 is vertically mounted in the recess 621.

When the protective shell is sleeved outside the supporting column 61, the connecting portion 22 (such as a flange) is just limited on the limiting table 622 as shown in fig. 14 and 15, finally, the insulating connecting member 14 in a fluid state is filled into the filling space, and after cooling, the product oxygen sensor is obtained as shown in fig. 16.

The manufacturing process of the sensor of embodiment 1 is specifically described by combining the wire bonding tool 5 and the pouring tool 6:

the chip of the detecting unit 1 is inserted into the first positioning hole 511, and the output end of the chip is positioned in the dispensing window 513, as shown in fig. 9.

The fixing member 32 is inserted into the second positioning hole 512, and the limiting protrusion 322 is limited in the limiting groove 514, so that the exposed metal core of the signal wire 31 is also located in the dispensing window 513, as shown in fig. 9.

The exposed metal core of the signal line 31 in the dispensing window 513 is aligned with the output end of the chip, and then the conductive adhesive in a fluid state is dispensed at the connection position of the exposed metal core of the signal line 31 and the output end of the chip in the dispensing window 513, so that the signal line 31 and the chip are electrically connected through the conductive adhesive, as shown in fig. 9 and 10.

After the conductive adhesive is cooled and solidified, a semi-finished product is obtained, as shown in fig. 3; because the area of the axial cross section of the second positioning hole 512 is larger than that of the axial cross section of the first positioning hole 511, the fixing member 32 can be pulled out of the second positioning hole 512, and the semi-finished product is separated from the wire bonding tool 5.

The chip of the detection unit 1 in the semi-finished product is inserted into the third positioning hole 611 of the pouring tool 6 again, as shown in fig. 12, because the depth of the third positioning hole 611 is smaller than the length of the chip, the upper portion of the chip is located outside the third positioning hole 611.

Sleeving the protective shell 21 on the outside of the supporting column 61, and abutting the bottom of the protective shell 21 against the bottom of the groove 621, at the same time, the connecting part 22 (such as a flange) is limited on the limiting table 622 to close the groove 621, as shown in fig. 13-15; in the present embodiment, since the height of the support columns 61 is smaller than the height of the protective case 21, no gap is formed between the circumferential surface of the protective case 21 and the circumferential surface of the support columns 61, and a pouring space is formed between the upper end surface of the protective case 21 and the upper end surface of the support columns 61.

Pouring the insulating connector 4 in a fluid state into the pouring space from the upper end surface of the protective shell 2 (i.e. the gap between the protective shell 21 and the fixing member 32), as shown in fig. 16, after the insulating connector 4 is cooled and solidified, the insulating connector 4 not only fixedly connects the chip and the protective shell 21 together, but also enhances the fixation of the signal line 31 and the chip, at this time, the protective shell 21 is pulled out of the supporting column 61, and the chip is taken out of the third positioning hole 611, so that the finished oxygen sensor is obtained, as shown in fig. 1.

Example 3

The present embodiment provides a household appliance, including an appliance body, and the oxygen sensor of embodiment 1; the oxygen sensor is installed on the electric appliance body.

Since the oxygen sensor of embodiment 1 has the housing assembly 2, it can be easily mounted on the home appliance, and at least the problem of high cost of the home appliance caused by the use of the current oxygen sensor for an automobile in the home appliance is solved.

The household appliances can be kitchen household appliances such as a steam box, a micro-steam box, a steam-baking integrated machine, a micro-steam oven and the like.

In the description of the present specification, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the described parent features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (4)

1. A perfusion tool is used for connecting a shell with a workpiece positioned in the shell through a connecting piece and is characterized in that,

the pouring tool (6) comprises a supporting column (61), and a third positioning hole (611) for positioning the workpiece is axially formed in the supporting column (61); the third positioning hole (611) is a blind hole, and the depth of the third positioning hole (611) is smaller than the length of the workpiece; the height of support column (61) is less than so that the cover is established the casing forms the space of filling between outer casing of support column (61) and the work piece, fill the connecting piece that has fluid state in the space of filling, will after the connecting piece cooling the casing with the work piece is connected.

2. The perfusion tool according to claim 1, wherein no gap is formed between the peripheral surface of the shell and the peripheral surface of the supporting column (61).

3. The infusion fixture according to claim 1, characterized in that the infusion fixture (6) further comprises a base (62); be equipped with recess (621) on base (62), support column (61) are vertical to be installed in recess (621).

4. Pouring tool according to claim 3, characterized in that the edge of the groove (621) defines a stop (622) towards the bottom of the groove (621).

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