CN108247945A - Tire pressure detector and its manufacturing method - Google Patents
Tire pressure detector and its manufacturing method Download PDFInfo
- Publication number
- CN108247945A CN108247945A CN201611248448.0A CN201611248448A CN108247945A CN 108247945 A CN108247945 A CN 108247945A CN 201611248448 A CN201611248448 A CN 201611248448A CN 108247945 A CN108247945 A CN 108247945A
- Authority
- CN
- China
- Prior art keywords
- tire pressure
- pressure detector
- mold
- shell
- detection circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
- B29C45/14336—Coating a portion of the article, e.g. the edge of the article
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C23/00—Devices for measuring, signalling, controlling, or distributing tyre pressure or temperature, specially adapted for mounting on vehicles; Arrangement of tyre inflating devices on vehicles, e.g. of pumps or of tanks; Tyre cooling arrangements
- B60C23/02—Signalling devices actuated by tyre pressure
- B60C23/04—Signalling devices actuated by tyre pressure mounted on the wheel or tyre
- B60C23/0491—Constructional details of means for attaching the control device
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The present invention proposes a kind of tire pressure detector and its manufacturing method.Aforementioned tire pressure detector has through hole, and the gas nozzle for allowing wheel rim passes through.Preceding method includes：It puts on a circuit board to one first mold, and circuit board has a tire pressure detection circuit and a cradle portion；First mold with one second mold is combined, and injects a plastics to the space between the first mold and the second mold to coat tire pressure detection circuit；The first mold and the second mold are detached to obtain a product, wherein product is the circuit board coated by a casing part, and shell is plastics after molding；And own product removes cradle portion so that tire pressure detector is made, wherein cradle portion is not by plastic overmold.The present invention tire pressure detector manufacturing method can efficiently reduce manufacture cost it is timely between.
Description
Technical field
The invention relates to a kind of tire pressure detector and its manufacturing method, and in particular to one kind with plastics one
Coating circuit plate and manufactured tire pressure detector and its manufacturing method.
Background technology
With promotion of the people for traffic safety attention degree, tire pressure detector is already indispensable in vehicle matches
It is one of standby.In known tire pressure detector manufacturing process, can generally it include the following steps：(1) via ejection formation journey twice
Sequence to manufacture upper cover and lower cover respectively；(2) circuit board is placed in aforementioned upper cover；(3) colloid (for example, epoxy resin) is filled extremely
With cladding and fixing circuit board in upper cover；(4) colloid drying (for example, 24 hours) is waited for；And (5) with reference to upper cover and lower cover simultaneously
It is sealed against.
It can be seen that from above step, the above process is other than needing ejection formation program at least twice, it is also necessary to carry
Equipment for filling colloid.If the also, speed of colloid to be promoted drying, it is also possible to need to dry or heat colloid
Equipment.It follows that not only step is various for known tire pressure detector manufacturing process, and the manufacture cost that needs it is timely between also compared with
It is more.Therefore, to those skilled in the art, how by simplify tire pressure detector manufacturing process come reduce manufacture into
This and time an actually important issue.
Invention content
In view of this, the present invention proposes a kind of manufacturing method of tire pressure detector, can be via single ejection formation program
So that plastics are integrally coated on circuit board so that tire pressure detector is made.Thus, in addition to manufacture tire pressure detection can be substantially improved
Except the efficiency of device, the cost of manufacture can be also reduced due to unwanted equipment, mold and colloid are fallen in saving.
The present invention proposes a kind of manufacturing method of tire pressure detector.Tire pressure detector has a through hole, for allowing a wheel
One gas nozzle of circle passes through.Preceding method includes：It puts on a circuit board to one first mold, and circuit board has a tire pressure detection
Circuit and a cradle portion；First mold is combined with one second mold, and inject a plastics to the first mold and the second mold it
Between a space to coat tire pressure detection circuit；The first mold and the second mold are detached to obtain a product, wherein product is served as reasons
The circuit board coated to one casing part, and shell is plastics after molding；And own product removes cradle portion so that tire pressure is made
Detector, wherein cradle portion be not by plastic overmold.
Other possible embodiments of the manufacturing method of tire pressure detector proposed by the present invention are as after.Cradle portion can be located on tire
Press circuit for detecting.Aforementioned tire pressure detector can divide into a first structure and one second structure based on a reference planes, wherein the
One structural integrity coats tire pressure detection circuit, and the second structure is supporting tire pressure detector.Through hole only penetrates through the second structure.The
At least one of one structure and the second structure include an at least support portion, for supporting tire pressure detector on wheel rim.The
At least one of one structure and the second structure include a base member, for being seated on wheel rim and with a stationary state branch
Support tire pressure detector.
Foregoing plastics can be in direct contact and integrally coat tire pressure detection circuit.Tire pressure detector separately has after cradle portion removal
There is an exposed portion to remain on tire pressure detector.
The present invention separately proposes a kind of tire pressure detector, and it includes through hole, circuit board and shells.Through hole is for allowing a wheel
One gas nozzle of circle passes through.There is circuit board a tire pressure detection circuit and an exposed portion to expose to outside shell.Shell is integrally formed
Coat tire pressure detection circuit.
Other possible embodiments of tire pressure detector proposed by the present invention are as after.Exposed portion is the cradle portion in circuit board
The part of residual on the shell after removed.Cradle portion is located on tire pressure detection circuit.
Previous housings divide into a first structure and one second structure based on a reference planes, and wherein first structure is integrally wrapped
Tire pressure detection circuit is covered, the second structure is to support housing.Through hole only penetrates through the second structure.First structure and the second structure
At least one includes an at least support portion, for the support housing on wheel rim.First structure and the second structure at least its
One of include a base member, for being seated on wheel rim and with a stationary state support housing.Plastics are in direct contact tire pressure
Circuit for detecting.
Description of the drawings
Fig. 1 is the manufacturing method flow chart for the tire pressure detector that an embodiment according to the present invention is painted；
Fig. 2 is the schematic diagram of injection molding equipment that an embodiment according to the present invention is painted；
Fig. 3 is the product perspective view that Fig. 1 embodiments are painted according to the present invention；
Fig. 4 is tire pressure detector schematic diagram made of Fig. 1 embodiments according to the present invention；
Fig. 5 is another visual angle of tire pressure detector being painted according to Fig. 4 embodiments.
Specific embodiment
The following drawings illustrate multiple embodiments of the present invention.As clearly stated, the details in many practices
It will be explained in the following description.However, details in these practices should not be limiting the present invention.That is,
In section Example of the present invention, the details in these practices is non-essential.In addition, for the sake of simplifying attached drawing, some are known used
Structure will be painted in a manner of simply illustrating in the accompanying drawings with element；And the element repeated will likely use identical volume
Number represent.
Referring to Fig. 1 to Fig. 4.Fig. 1 is the manufacturer of tire pressure detector that an embodiment according to the present invention is painted
Method flow chart.Fig. 2 is the schematic diagram of injection molding equipment 200 that an embodiment according to the present invention is painted.Fig. 3 is according to this hair
300 perspective view of product that bright Fig. 1 embodiments are painted.Fig. 4 is that tire pressure detector 400 shows made of Fig. 1 embodiments according to the present invention
It is intended to.
In step 110, it can put on 230 to the first mold 210 of circuit board.Circuit board 230 is, for example, printed circuit board,
It can be provided with the elements such as battery, antenna and processor according to the demand of designer, but the present invention includes and without being limited thereto.Scheming
In 3 embodiment, circuit board 230 can have tire pressure detection circuit 230_1 and cradle portion 230_2.Cradle portion 230_2 can be located on
Tire pressure detection circuit 230_1.In one embodiment, cradle portion 230_2 is for aiding in fixing circuit board on the first mold 210
230 position, but it can be removed in subsequent steps, thus do not appear in made tire pressure detector 400.Phase
The details of pass will illustrate in length later.
In the step 120, the first mold 210 can be combined, and 240 to the first mold of injected plastic with the second mold 220
210 and the second space 250 between mold 220 to coat tire pressure detection circuit 230_1.In one embodiment, ejection formation is set
Standby 200 toward direction D1 movements and can be covered on the second mold 220 (for example, master mold) on the first mold 210 (for example, male model),
To combine the first mold 210 and the second mold 220.Later, injection molding equipment 200 can pass through channel 270 and will expect in bar 260
Plastics 240 are injected into space 250, so that the tire pressure detection circuit 230_1 of the only coating circuit plate 230 of plastics 240 is (also that is, electricity
The cradle portion 230_2 of road plate 230 will not be coated by plastics 240).Those skilled in the art is it should be appreciated that aspect shown in Fig. 2
Only to illustrate the process of ejection formation, it is not limited to the possible embodiment of the present invention.
Significantly, since fixing circuit board 230 on the first mold 210 can be aided in by being provided on circuit board 230
Position cradle portion 230_2, thus can allow circuit board 230 will not be due to the injection of plastics 240 in the program of ejection formation
Displacement.Also, after the suitably parameters such as the injection pressure of setting plastics 240, speed, you can not destroying circuit board 230
In the case of plastics 240 is made to be in direct contact and integrated cladding tire pressure detection circuit 230_1.
Later, in step 130, injection molding equipment 200 separates the first mold 210 and the second mold 220 to obtain
Product 300.In figure 3, product 300 is the circuit board 230 partly coated by shell 310, and shell 310 is modeling after molding
Material 240.Then, in step 140, can own product 300 remove cradle portion 230_2 so that tire pressure detector 400 is made.
It is to be understood that since cradle portion 230_2 is just for example, by cutting after plastics 240 are shaped to shell 310
Mode remove, therefore will separately there is the exposed portion 410 to remain on tire pressure detector 400 after cradle portion 230_2 removals.Due to
Exposed portion 410 belongs to a part for circuit board 230, and therefore, the circuit board 230 in tire pressure detector 400 is also considered as exposed
's.That is, the position where can learning circuit board 230 in tire pressure detector 400 by observing the position in exposed portion 410
It puts.
By above-described embodiment it is found that in the case of cradle portion 230_2 is provided on circuit board 230, the present invention only needs list
One ejection formation program can make plastics 240 integrally be coated on the tire pressure detection circuit 230_1 of circuit board 230, remove again later
Cradle portion 230_2 can be made into tire pressure detector 400.That is, the present invention is in addition to being not required to for Production Example such as upper and lower cover etc.
Element and carry out except multiple die sinking and ejection formation program, be also not required to carry out colloid filling and drying program.Such one
Come, other than the manufacture efficiency of tire pressure detector 400 can be substantially improved, unwanted equipment, mold can be also fallen because of saving
And colloid and reduce the cost of manufacture.
For another viewpoint, since known circuit board is entirely to be placed in the upper and lower cover of sealing, thus can't
There are any exposed parts.However, via there will be because removing stent on the tire pressure detector 400 manufactured by the method for the present invention
Remaining exposed portion 410 of portion 230_2 institutes.
In one embodiment, tire pressure detector 400 can be fixedly arranged on wheel rim.As shown in figure 4, shell 310 can be based on ginseng
It examines plane 420 and divides into first structure 310_1 and the second structure 310_2, wherein first structure 310_1 can integrated coating circuit plate
230 tire pressure detection circuit 230_1, and the second structure 310_2 then can be used to support housing 310.
It, can be by adjusting the first mould in order to which tire pressure detector 400 is allowed not moved with the rotation of wheel rim in one implements side
Tool 210 and second mold 220 shape come allow tire pressure detector 400 have to support housing 310 the second structure 310_2.
It is to be understood that the tire pressure detection circuit 230_1 of circuit board 230 is coated in only first structure 310_1, and the second structure
310_2 then uncoated any elements.
In addition, in order to detect the tire pressure in tire, may be provided with that the gas nozzle of wheel rim is allowed to pass through on tire pressure detector 400
Through hole, can only penetrate through the second structure 310_2.In other words, aforementioned through hole is non-through is located in first structure 310_1
The tire pressure detection circuit 230_1 of circuit board 230.In addition, in response to the wheel rim type applied in tire pressure detector 400, it is above-mentioned to pass through
The position of through-hole also can accordingly adjust.
By taking Fig. 4 as an example, tire pressure detector 400 may include the first through hole 430_1 and the second through hole 430_2.First passes through
The central shaft 450_1 of through-hole 430_1 can be substantially parallel to the surface 440 of shell 310, and the center of the second through hole 430_2
Axis 450_2 can be substantially perpendicular to the surface 440 of shell 310, but the present invention includes and without being limited thereto.In the present embodiment, when
When tire pressure detector 400 is installed on automotive rim, the first through hole 430_1 can be used for the gas nozzle on automotive rim is allowed to pass through.
On the other hand, when tire pressure detector 400 is installed on locomotive wheel rim, the second through hole 430_2 can be used for allowing on locomotive wheel rim
Gas nozzle pass through.
In addition, on first structure 310_1 and the second structure 310_2 can also in response in the wheel rim type applied (for example, machine
Wheel or automotive rim) and it is provided with corresponding support component.
Fig. 5 is please referred to, is another visual angle of tire pressure detector 400 being painted according to Fig. 4 embodiments.In the present embodiment
In, first structure 310_1 and the second structure 310_2 may include support portion 510_1, support portion 510_2 and support portion 510_3.
In this case, when tire pressure detector 400 is installed on automotive rim, the gas nozzle of automotive rim may pass through the first through hole 430_
1, and support portion 510_1, support portion 510_2 and support portion 510_3 can be used for supporting tire pressure detector on aforementioned automotive wheel rim
400。
In addition, first structure 310_1 and the second structure 310_2 may also include base member 520_1 and base member 520_
2.In the case, when tire pressure detector 400 is installed on locomotive wheel rim, the gas nozzle of locomotive wheel rim may pass through the second through hole
430_2, and base member 520_1 and base member 520_2 can be supported through being seated on aforementioned locomotive wheel rim and with stationary state
Tire pressure detector 400.
Due to the present invention tire pressure detector 400 on simultaneously be provided with the first through hole 430_1, the second through hole 430_2,
Support portion 510_1, support portion 510_2, support portion 510_3, base member 520_1 and base member 520_2, therefore can fit simultaneously
For locomotive wheel rim and automotive rim.
However, in other embodiments, if tire pressure detector 400 is designed to if being only applicable to automotive rim, first
Structure 310_1 and the second structure 310_2 can only include the first through hole 430_1, support portion 510_1, support portion 510_2 and support
Portion 510_3, base member 520_1 and base member 520_2.
On the other hand, if tire pressure detector 400 is designed to if being only applicable to locomotive wheel rim, first structure 310_1 and
Second structure 310_2 can only include the second through hole 430_2, support portion 510_1, support portion 510_2 and support portion 510_3, bottom
Portion element 520_1 and base member 520_2.
In conclusion in the case of being provided with cradle portion on circuit boards, the present invention only needs single ejection formation program i.e.
Plastics can be made integrally to be coated on the tire pressure detection circuit of circuit board, cradle portion is removed again later and can be made into tire pressure detector.
That is the present invention is in addition to being not required to carry out multiple die sinking and ejection formation program for elements such as Production Example such as upper and lower covers
Except, be also not required to carry out colloid filling and drying program.Thus, in addition to manufacture tire pressure detector can be substantially improved
Except efficiency, the cost of manufacture can be also reduced due to unwanted equipment, mold and colloid are fallen in saving.
Claims (16)
1. a kind of manufacturing method of tire pressure detector, which has a through hole, for allowing a gas nozzle of a wheel rim
It passes through, which is characterized in that the manufacturing method includes：
It puts on a circuit board to one first mold, and the circuit board has a tire pressure detection circuit and a cradle portion；
First mold with one second mold is combined, and injects a plastics to one between first mold and second mold
Space is to coat the tire pressure detection circuit；
First mold and second mold are detached to obtain a product, wherein the product be coated by a casing part should
Circuit board, and the shell is the plastics after molding；And
The cradle portion is removed so that the tire pressure detector is made from the product, and wherein the cradle portion is not by the plastic overmold.
2. the manufacturing method of tire pressure detector according to claim 1, which is characterized in that wherein the cradle portion is located on this
Tire pressure detection circuit.
3. the manufacturing method of tire pressure detector according to claim 1, which is characterized in that wherein the tire pressure detector is based on
One reference planes divide into a first structure and one second structure, and the wherein first structure integrally coats the tire pressure detection circuit,
Second structure is supporting the tire pressure detector.
4. the manufacturing method of tire pressure detector according to claim 3, which is characterized in that wherein the through hole only penetrates through this
Second structure.
5. the manufacturing method of tire pressure detector according to claim 3, which is characterized in that wherein the first structure and this
At least one of two structures includes an at least support portion, for supporting the tire pressure detector on the wheel rim.
6. the manufacturing method of tire pressure detector according to claim 3, which is characterized in that wherein the first structure and this
At least one of two structures includes a base member, for being seated on the wheel rim and supporting the tire pressure with a stationary state
Detector.
7. the manufacturing method of tire pressure detector according to claim 1, which is characterized in that wherein the plastics be in direct contact and
Integrally coat the tire pressure detection circuit.
8. the manufacturing method of tire pressure detector according to claim 1, which is characterized in that wherein the tire pressure detector is at this
Cradle portion separately there is an exposed portion to remain on the tire pressure detector after removing.
9. a kind of tire pressure detector, which is characterized in that include：
One shell；
One through hole, on the shell, and the through hole is used to that a gas nozzle of a wheel rim to be allowed to pass through；And
There is one circuit board a tire pressure detection circuit and an exposed portion to expose to outside the shell, and wherein the shell is integrally formed
Coat the tire pressure detection circuit.
10. tire pressure detector according to claim 9, which is characterized in that wherein the exposed portion is the one of the circuit board
The part on the shell is remained in after cradle portion is removed.
11. tire pressure detector according to claim 10, which is characterized in that wherein the cradle portion is located on the tire pressure detection
Circuit.
12. tire pressure detector according to claim 9, which is characterized in that wherein the shell is distinguished based on a reference planes
For a first structure and one second structure, the wherein first structure integrally coats the tire pressure detection circuit of the circuit board, this
Two structures are supporting the shell.
13. tire pressure detector according to claim 12, which is characterized in that wherein the through hole only penetrates through second knot
Structure.
14. tire pressure detector according to claim 12, which is characterized in that the wherein first structure and second structure
At least one includes an at least support portion, for supporting the shell on the wheel rim.
15. tire pressure detector according to claim 12, which is characterized in that the wherein first structure and second structure
At least one includes a base member, for being seated on the wheel rim and supporting the shell with a stationary state.
16. tire pressure detector according to claim 9, which is characterized in that wherein the shell is in direct contact the tire pressure detection
Circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611248448.0A CN108247945A (en) | 2016-12-29 | 2016-12-29 | Tire pressure detector and its manufacturing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611248448.0A CN108247945A (en) | 2016-12-29 | 2016-12-29 | Tire pressure detector and its manufacturing method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108247945A true CN108247945A (en) | 2018-07-06 |
Family
ID=62721279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611248448.0A Pending CN108247945A (en) | 2016-12-29 | 2016-12-29 | Tire pressure detector and its manufacturing method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108247945A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130016209A1 (en) * | 2000-03-02 | 2013-01-17 | Donnelly Corporation | Driver assist system for vehicle |
| CN203460626U (en) * | 2013-08-14 | 2014-03-05 | 联创汽车电子有限公司 | Tire pressure monitoring sensor with once-curing formed structure |
-
2016
- 2016-12-29 CN CN201611248448.0A patent/CN108247945A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130016209A1 (en) * | 2000-03-02 | 2013-01-17 | Donnelly Corporation | Driver assist system for vehicle |
| CN203460626U (en) * | 2013-08-14 | 2014-03-05 | 联创汽车电子有限公司 | Tire pressure monitoring sensor with once-curing formed structure |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180706 |
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| WD01 | Invention patent application deemed withdrawn after publication |