CN1987378A - Improved structure of electronic thermometer - Google Patents
Improved structure of electronic thermometer Download PDFInfo
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- CN1987378A CN1987378A CN200510132348.7A CN200510132348A CN1987378A CN 1987378 A CN1987378 A CN 1987378A CN 200510132348 A CN200510132348 A CN 200510132348A CN 1987378 A CN1987378 A CN 1987378A
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- electronic thermometer
- contact
- improved
- push switch
- anchor post
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Abstract
The improved structure includes main body of electronic thermometer, temperature sensing head, and core unit. The core unit includes temperature display screen, printed circuit board (PCB) with electrical contact, and fixed column of conduction granule setup adjacent to PCB. The fixed column is flexible body. One of fixed column end with the conduction granule is fixed on the core unit, and the other end is free end. A push button type switch is installed on back end of the main body of electronic thermometer. It is aligned basically or in an acute angle between pushing direction and length direction of the main body of electronic thermometer. Direction of pushing switch in length direction is more suitable to measure temperature of mouth. The invention meets need of use in special situation. Features are: simple structure and fabricating technique, low cost of improvement, and high reliability.
Description
Technical field
The present invention relates to a kind of electronic thermometer that body temperature or other occasions, article are used that measures, relate in particular to the improvement of electronic thermometer construction of switch.
Background technology
General thermometer is no more than being to use the mercury bar thermometer, and this thermometer is as the term suggests be to utilize the rising-heat contracting-cold principle of mercury to reach the effect of take temperature, but it but is quite dangerous thermometer, because it is to make with glass, so also must pay special attention in the use,, can make its fracture most probably if collide mercury thermometer because of carelessness, and the mercury that flows out can damage the user, and is especially more dangerous when being used in anus temperature or mouth temperature; And if for the patient of long-time needs monitoring body temperature, the mercury bar thermometer can't allow patient reach the comfortable effect of take temperature at any time that reaches especially, has in fact and need be researched and developed a kind of temperature monitoring meter that meets the demand.
In recent years, have electronic thermometer to carry out measurement of bldy temperature for human body, but its water-proof function is relatively poor, switch key is laterally and pushes in addition, is not inconsistent the habituation of occasions such as resultant oral cavity, can't satisfy the needs that some special occasions uses.The spy opens the switch key structure that clear 61-191928 number Japanese patent of invention prospectus discloses a kind of electronic thermometer, this structure is roughly as follows: be provided with a seal in the lid of electronic thermometer body tip, be provided with a flexible strip of making by soft synthetic resin the top one of seal and liquid sealing, this flexible strip top has a movable push switch, this push switch is positioned at the switch hole at described lid end face center, and its top protrudes from outside the switch hole, its bottom has a contact site, this contact site keeps in touch with flexible strip all the time by end face, is provided with " O " shape O-ring seal between the inside surface in push switch and the switch hole.The below of flexible strip has a switch triggering mechanism, this switch triggering mechanism comprises a plastic cement matrix, be connected with a metal switch shell fragment on the matrix, keep in touch with the bottom surface of flexible strip all the time at the top of this switch shrapnel, the top of matrix is provided with a contact corresponding with switch shrapnel in addition, and switch shrapnel and contact be the two poles of the earth of connecting circuit respectively.When being subjected to external force, push switch does the time spent, this push switch moves down and urge flexible strip makes it produce the flexible deformation, this flexible strip so urge its below switch shrapnel, make it produce elastic bending and touch contact on the matrix until the contact of its end, thereby circuit is connected, and electronic thermometer is started working.
Though the switch key of said structure can carry out vertical pressing operation from the tail end of electronic thermometer, but what its switch triggering mechanism adopted is the structure of metal clips, this structure exists many weak points, mainly show: 1) because switch triggering mechanism comprises plastic cement matrix and metal clips at least, can't one-shot forming, also need in addition metal clips is carried out Bending Processing and metal clips and plastic cement matrix are adhered to processing, structure and complex process, the probability that produces defective products is higher; 2) for present widely used electronic thermometer, exist bigger difference in inner structure, its improvement cost is higher, can't satisfy dealer's needs; 3) elastic break-down takes place, and causes the malfunctioning of switch after the flexural deformation of repeated multiple times in metal clips structure easily, and reliability is relatively poor.In sum, this immediate prior art still has many weak points, still has the bigger space of improving, and demands urgently being improved.
Summary of the invention
Technical matters to be solved by this invention is to overcome the deficiencies in the prior art, a kind of structure-improved of electronic thermometer is provided, the mode of pushing of its switch key is for vertically pushing, the habituation of occasion such as the amount of meeting oral cavity more, and can satisfy the needs that some special occasions uses, and structure and processing technology are simple, and the improvement cost is low, the reliability height.
For this reason, the invention provides a kind of structure-improved of electronic thermometer, comprise the electronic thermometer body, be positioned at the temperature sensing head of body front end, has movement in the body, this movement comprises temperature display, the printed circuit board (PCB) of live contact and with the conduction grain anchor post of the adjacent setting of printed circuit board (PCB), described conduction grain anchor post is a flexible body, be fixed with the conduction grain relative on it with described electric contact, one end of described conduction grain anchor post is fixed on the movement, the other end is a free end, also being provided with one on the length direction of conduction grain anchor post can contact with it and it is imposed the push switch of acting force, this push switch is positioned at the rearward end of electronic thermometer body, and it is pushed the length direction basically identical of direction and thermometer body or acutangulates.
The end face of abutting end can be the inclined-plane between described push switch and the conduction grain anchor post, and both ends of the surface are the contact of formation face when contact; Above-mentioned two abutting ends also can only be arranged to inclined-plane or curved surface on an end face, two abutting ends form line contact or some contact when contact.Like this, come from and push acting force longitudinally and can produce horizontal component, make flexible conduction grain anchor post produce horizontal flexural buckling distortion, thereby the conduction grain that drives on it contacts with electric contact on the printed circuit board (PCB).
The rearward end of described electronic thermometer body can be a lid that can be separated with the pars intermedia of body, and described push switch is positioned on this lid, and along the axis of this lid or depart from the axis and be provided with; Described push switch is a flexible button.
The structure that the rearward end of described electronic thermometer body also can be formed in one with pars intermedia, described push switch is a rigidity button post, and this button post passes the setting that free end is relative and formation can be in contact with one another of through hole with the conduction grain anchor post of a dividing plate in the thermometer body; Between button post and dividing plate, be provided with such as reposition elements such as springs.
Described temperature sensing head and electronic thermometer body can be structure as a whole, and this temperature sensing head is flexible flexible structure, can greatly make things convenient for patient, particularly children and the old,weak,sick and disabled's use.
The present invention, improves and need not to drop into excessive cost on the water-proofing treatment of switch key to increase the degree of depth that can be soaked in the liquid by increasing the distance of switch key and measuring end; And the mode of pushing of switch key changed into vertically push, more the habituation of occasion such as the amount of meeting oral cavity also can satisfy the needs that some special occasions uses.Owing to the position with switch key has moved on to the end, make the outward appearance of electronic thermometer seem more smooth simultaneously, also can be convenient in carrying out structural design and production practices.The more important thing is: (1) push switch directly urges flexible body, make it to produce flexural deformation, and the conduction grain that drives on it contacts with the electric contact of printed circuit board (PCB), obviously, this wherein need not use the metal clips of easy generation elastic break-down, and therefore, reliability is stronger, and, the serviceable life of electronic thermometer obtained prolongation; (2) need not do too big change to the internal structure of existing electronic thermometer, can realize the improvement of above-mentioned functions, the improvement cost is low, can satisfy dealer's demand better; (3) avoided bending and technology such as adhere to, structure and processing are more simple, have saved manufacturing cost, and production efficiency also greatly improves.
Description of drawings
Fig. 1 is a first embodiment of the present invention decomposition texture synoptic diagram;
Fig. 2 is a first embodiment of the present invention front appearance synoptic diagram;
Fig. 3 is a first embodiment of the present invention side schematic appearance;
Fig. 4 is the A-A cut-open view of Fig. 2;
Fig. 5 is the partial enlarged drawing of Fig. 4;
Fig. 6 is a second embodiment of the present invention decomposition texture synoptic diagram;
Fig. 7 is a second embodiment of the present invention front appearance synoptic diagram;
Fig. 8 is a second embodiment of the present invention side schematic appearance;
Fig. 9 is the B-B cut-open view of Fig. 7;
Figure 10 is the partial enlarged drawing of Fig. 9;
Figure 11 is a third embodiment of the present invention decomposition texture synoptic diagram;
Figure 12 is a third embodiment of the present invention front appearance synoptic diagram;
Figure 13 is a third embodiment of the present invention side schematic appearance;
Figure 14 is a third embodiment of the present invention back appearance synoptic diagram;
Figure 15 is the C-C cut-open view of Figure 12;
Figure 16 is the partial enlarged drawing of Figure 15.
Embodiment
The present invention is further illustrated below in conjunction with accompanying drawing and embodiment:
Fig. 1～5 show structure improved first kind of embodiment of electronic thermometer of the present invention, this structure comprises the thermometer body 1 with an elongated probe portion, this body is generally the ducted body that is formed by plastic monoblock, front end in described elongated probe portion is provided with the temperature sensing head 2 that is used for responding to measuring temperature, is generally good heat conducting material (as metal) and makes; The rearward end of thermometer body is a lid 3 that can be separated with the pars intermedia of body, lid is provided with switch key 4, establish one in the thermometer body and include the temperature display 51 (being generally LCD display) that is used for the temperature that displays temperature sensing head 2 measures, the movement 5 of printed circuit board (PCB) 52 and electrical contact 53 upward thereof, thermometer body 1 surface corresponds to temperature display 51, and lid 3 is provided with form breach 6 and key hole respectively corresponding to switch key 4 places, thermometer body 1 surface around form breach 6 has groove 7, transparent window plate 8 fits on (available ultrasonic combination) this groove 7, and with 6 coverings of form breach, see through described transparent window plate 8, can observe and be arranged at form plate temperature display 51 afterwards.Be provided with the temperature sensor 9 and the line of induction 10 in the temperature sensing head 2 of thermometer body 1 front end in a known way, the two ends of the line of induction 10 are connected to the printed circuit board (PCB) 52 of described temperature sensor 9 and movement 5 respectively.
The rear portion of thermometer body 1 has openend 11, and movement 5 is inserted in the thermometer body 1 by openend 11, and available lid 3 is with openend 11 sealings.Movement 5 is by movement matrix 12, is fixed on temperature display 51 on the matrix, printed circuit board (PCB) 52, conduction grain 13 and conduction grain anchor post 14 etc. and constitutes, and conduction grain 13 is used for printed circuit board (PCB) 52 and battery conducting, thus the program that start-up temperature measures.Conduction grain anchor post is a flexible element, switch key 4 carries out pressing operation to conduction grain anchor post to the operator indirectly on the lid 3 by pushing, flexural buckling takes place in conduction grain anchor post under the effect of switch key 4, driving conduction grain fixed thereon moves towards the direction of printed circuit board (PCB), and electrically contact, thereby make printed circuit board (PCB) 52 and battery conducting with electric contact on the printed circuit board (PCB).
Switch key 4 on the lid 3 is a flexible key body, its be positioned at conduction grain anchor post 14 along the side on the thermometer length direction.Conduction grain anchor post 14 equally also is a flexible element, and itself and described switch key 4 are oppositely arranged and form the setting that can be in contact with one another by the inclined-plane each other.Like this, when this switch key 4 is carried out pressing operation, it produces axial force or axial thrust load to described conduction grain anchor post 14, switch key 4 overstocks mutually by the inclined-plane with conduction grain anchor post 14 and misplaces to both sides respectively, conduction grain anchor post 14 is towards the direction generation flexural buckling distortion of printed circuit board (PCB) 52, drive conduction grain 13 simultaneously and move, and conduction grain 13 is contacted with electric contact on the printed circuit board (PCB) towards printed circuit board (PCB) 52 directions.
Fig. 6～10 show structure improved second kind of embodiment of electronic thermometer of the present invention, the key distinction of this embodiment and last a kind of embodiment is that in the present embodiment, switch key is positioned at the apical position of lid, that is to say that it just in time is positioned on the axis of whole thermometer.The conduction grain anchor post of thermometer body interior also correspondingly is arranged on the position of more close thermometer axis, with relative with switch key; Similarly, be oppositely arranged and form the setting that can be in contact with one another between them by the inclined-plane.Other structure and working method are all basic identical with last a kind of embodiment, therefore no longer are repeated in this description here.
Figure 11～16 show structure improved the third embodiment of electronic thermometer of the present invention, the pars intermedia of the thermometer body of this embodiment and the structure that rearward end is formed in one, promptly do not exist as the separable lid among above-mentioned two kinds of embodiment, be provided with the button post 15 of a rigidity in the end of thermometer body, the setting that the through hole that this button post passes a dividing plate 16 in the thermometer body and the 14 relative also formation of conduction grain anchor post can be in contact with one another.Between button post 15 and dividing plate 16, be provided with, button post 15 loosed one's grip to return to the position before pushing after pressing operation such as reposition elements such as spring 17.
In above-mentioned three kinds of embodiment, the structure that the temperature sensing head of thermometer body and its leading section can also be formed in one, do not have any seam between the two, temperature sensor is ensconced the inside of temperature sensing head, directly moulds integrator by the body of plastic material and electronic thermometer.The temperature sensing head is flexible structure, and is flexible, can greatly make things convenient for patient, particularly children and the old,weak,sick and disabled's use.
The present invention is not limited to the foregoing description; no matter on its shape or structure, do any variation, everyly push switch is located at electronic thermometer body rearward end and its pushes direction and thermometer body length direction basically identical or acutangulate electronic thermometer and all drop within protection scope of the present invention.End surface shape for abutting end between push switch and the conduction grain anchor post, in the foregoing description, be the situation on inclined-plane, can also only be arranged to inclined-plane or curved surface on an end face therein, and plane or other shape faces can be arranged in the other end, and this face forms line by a bight and described inclined-plane and contacts; In addition, an end face wherein can also be arranged to inclined-plane or curved surface, the other end is arranged to pointed cone, thereby forms the some contact.More than these distortion all can reach and make a conduction grain anchor post under the effect of switch key, flexural buckling take place, drive conduction grain fixed thereon and move, and the purpose that electrically contacts with electric contact on the printed circuit board (PCB) towards the direction of printed circuit board (PCB).
Claims (10)
1. the structure-improved of an electronic thermometer, comprise the electronic thermometer body, be positioned at the temperature sensing head of body front end, has movement in the body, this movement comprises temperature display, the printed circuit board (PCB) of live contact and with the conduction grain anchor post of the adjacent setting of printed circuit board (PCB), described conduction grain anchor post is a flexible body, be fixed with the conduction grain relative on it with described electric contact, it is characterized in that: an end of described conduction grain anchor post is fixed on the movement, the other end is a free end, also being provided with one on the length direction of conduction grain anchor post can contact with it and it is imposed the push switch of acting force, this push switch is positioned at the rearward end of electronic thermometer body, and it is pushed the length direction basically identical of direction and thermometer body or acutangulates.
2. the structure-improved of electronic thermometer according to claim 1 is characterized in that: the end face of abutting end is the inclined-plane between described push switch and the conduction grain anchor post, and both ends of the surface are the contact of formation face when contact.
3. the structure-improved of electronic thermometer according to claim 1 is characterized in that: a wherein end face of the abutting end between described push switch and the conduction grain anchor post is inclined-plane or curved surface, and two abutting ends form the line contact when contact.
4. the structure-improved of electronic thermometer according to claim 1 is characterized in that: a wherein end face of the abutting end between described push switch and the conduction grain anchor post is inclined-plane or curved surface, and two abutting ends form the some contact when contact.
5. according to the structure-improved of the arbitrary described electronic thermometer of claim 1 to 4, it is characterized in that: the rearward end of described electronic thermometer body is a lid that can be separated with the pars intermedia of body, described push switch is positioned on this lid, and along the axis of this lid or depart from the axis and be provided with.
6. the structure-improved of electronic thermometer according to claim 5, it is characterized in that: described push switch is a flexible button.
7. according to the structure-improved of the arbitrary described electronic thermometer of claim 1 to 4, it is characterized in that: the structure that the rearward end of described electronic thermometer body and pars intermedia are formed in one.
8. the structure-improved of electronic thermometer according to claim 7, it is characterized in that: described push switch is a rigidity button post, and this button post passes the setting that free end is relative and formation can be in contact with one another of through hole with the conduction grain anchor post of a dividing plate in the thermometer body; Between button post and dividing plate, be provided with reposition element.
9. the structure-improved of electronic thermometer according to claim 8, it is characterized in that: described reposition element is a spring.
10. the structure-improved of electronic thermometer according to claim 1, it is characterized in that: described temperature sensing head and electronic thermometer body are structure as a whole, and this temperature sensing head is flexible flexible structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510132348.7A CN1987378A (en) | 2005-12-21 | 2005-12-21 | Improved structure of electronic thermometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200510132348.7A CN1987378A (en) | 2005-12-21 | 2005-12-21 | Improved structure of electronic thermometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1987378A true CN1987378A (en) | 2007-06-27 |
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ID=38184258
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200510132348.7A Pending CN1987378A (en) | 2005-12-21 | 2005-12-21 | Improved structure of electronic thermometer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1987378A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104873176A (en) * | 2015-05-11 | 2015-09-02 | 舒建文 | Novel electric thermometer |
-
2005
- 2005-12-21 CN CN200510132348.7A patent/CN1987378A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104873176A (en) * | 2015-05-11 | 2015-09-02 | 舒建文 | Novel electric thermometer |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20070627 |