CN209416516U - Water proof type thermometer outer shell and electronic thermometer - Google Patents

Abstract

The utility model relates to a kind of water proof type thermometer outer shell and electronic thermometers, shell includes cap body and shell, the cavity for accommodating clinical thermometer wiring board is equipped in the shell, the shell includes main casing and form portion, form portion is set to this side of the top surface of main casing, main casing and form portion are integral type injection molding, and form subordinate, which is sunken to main casing top surface and form portion, has local transparent face, and form portion medial surface is flushed with main casing medial surface；The water proof type clinical thermometer shell of the utility model directlys adopt plastic material integrated injection forming, the inside and outside not intercommunication in form portion, and water and other materials cannot propagate into inside；Secondary operation processing is not needed, appearance is more succinct, and structure is simpler, without in addition setting waterproof construction.

Description

Water proof type thermometer outer shell and electronic thermometer

Technical field

The utility model belongs to temperature taking technical field more particularly to a kind of water proof type thermometer outer shell and using upper State the electronic thermometer of thermometer outer shell.

Background technique

Conditional electronic clinical thermometer is because display needs, it usually needs opens up the viewing window of hollow out, the wiring board of clinical thermometer is inserted Enter to clinical thermometer, liquid crystal display is exactly at viewing window position, and display reading is read for user；But this electric body-temperature It counts watchcase viewing window position and inside is intercommunication, water or other substances can be directly entered inside clinical thermometer, such as need waterproof Or it prevents other substances from entering inside clinical thermometer and just needs to carry out watchcase secondary operation processing, such as paste waterproof in viewing window position Film and the operation such as carry out ultrasonic bonding；But such waterproof effect is not easy to control, main reason is that must examine simultaneously Consider the thickness of the height and circuit board inside clinical thermometer, if any one element because of design error, or because with using The increase of time, so that the gap between clinical thermometer inner wall and circuit board becomes larger, waterproof membrane can not all be close to the form of top again Mouthful, furthermore, part space or thermal expansion and cold contraction effect on circuit board influence whether the fitting between waterproof membrane and viewing window Degree.

In view of the above-mentioned problems, Patent No.: the utility model patent of " CN200520144886.3 " discloses a kind of waterproof Clinical thermometer, the clinical thermometer are close contact in the inner sidewall of display window directly with the protruding portion lateral wall of hyaline layer upper surface extension, because This, such waterproof construction is the design independently of circuit substrate and clinical thermometer ontology, can not be by its design error or because making for a long time With the influence in the gap of generation；Furthermore in order to further increase waterproof effect, which separately can be by surrounding hyaline layer protruding portion Sealing ring design and more reinforce the effect of waterproof；Above-mentioned design seems improves the secured of viewing window position sealing structure more in the past Degree, but still complicated structure is needed to realize, assembling speed is reduced to a certain extent, improves processing cost.

Summary of the invention

The utility model in view of the above-mentioned deficiencies in the prior art, provides a kind of waterproof performance more preferably, form portion Without carrying out secondary waterproof working process, need to only local polishing be carried out to form portion and guarantee light transmittance, facilitate display to read anti- Water thermometer outer shell, the Waterproof clinical thermometer housing profile is simple and beautiful, and waterproof effect can be realized without complicated structure.

In order to achieve the above purpose, the utility model uses technical solution below:

A kind of water proof type thermometer outer shell, including cap body and shell, interior be equipped with of the shell accommodate clinical thermometer wiring board Cavity, the shell includes main casing and form portion, and form portion is set to this side of the top surface of main casing, main casing and view Window portion is integral type injection molding, and form subordinate is sunken to main casing top surface and form portion has local transparent face, form portion inside Face is flushed with main casing medial surface.

Preferably, form portion lateral surface is lower than main casing top surface 0.5-2mm.Form subordinate is heavy and form portion thickness is thin In main casing other parts, so that facilitating local polishing herein, and more convenient display is read, it is more clear reading.

Conditional electronic clinical thermometer push-button design is generally silica gel button, but non-watertight needs the secondary installation of outside or inside Waterproof membrane again fix by ultrasonic bonding, preferably, being equipped with button, button four at form portion position on main casing top surface It is equipped with annular sinking portion week, the interconnecting piece between button bottom surrounding and main casing, the company are formed on the bottom in annular sinking portion Socket part is recessed arcuate shape, and button, interconnecting piece and main casing are integral type injection molding.This shell buttons structure is using complete Integral molded plastic finished product is sealed, and uses section to design for U-shaped in structure between button and shell, increases key press row Journey；There is pressing feel well while water proof and dust proof again；The direct integrated injection molding of the utility model button does not have at secondary operation Single injection-molded is managed with regard to waterproof inside and outside isolation, has reached well handfeel of keys by U-shaped connection design.Compare traditional handicraft And structure, this structure are more advanced.

Preferably, the width of interconnecting piece be 1-3mm, interconnecting piece with a thickness of 0.15-0.2mm.In order to increase button hand Sense, button and main casing junction thickness have accomplished 0.18MM, and junction is provided with reasonable width, so that elasticity is more, together When in turn ensure bonding strength.

Preferably, annular sinking portion has first side and second side, first side is on main casing, second side Face is the outside circumference of button, and from main casing top surface to main casing medial surface direction, first side is to tilt towards push-button Setting, and first side gradient is greater than second side.This is designed so that more, button connects when sinking for damping when button pressed downwards Portion is easy to produce deformation, and springs back faster, and reset property is good, while ensure that service life.

Preferably, the lower end surface of interconnecting piece protrudes from the medial surface of main casing.When can make button pressed downwards in this way this Place is easy to produce deformation, and generates better feel.

Preferably, main casing has the tail portion for installing the front of temperature-sensitive head and for being inserted into wiring board, in tail Portion is equipped with one to the cyclic annular contraction flow region mating with cap body, and at least twice annular protrusion is offered on cyclic annular contraction flow region, It is corresponding cyclic annular convex when being equipped with the annular recess cooperated with annular protrusion, cap body and mating cyclic annular contraction flow region in cap body It rises and is stuck in annular recess.Main casing tail structure uses folk art term waterproof sealing, compares traditional one grade of waterproof grommet of use Design, this structure is to waterproof and prevents from other substances from entering enclosure interior having better effect.In addition annular protrusion herein It is one-time injection molding with main casing, compares the structure that tradition needs artificial secondary treatment to install waterproof grommet additional, this structure It is more advanced easier.

Preferably, twice annular protrusion is offered on cyclic annular contraction flow region, respectively the first annular projection and the second ring Shape protrusion, the first annular projection is in the position closer to form portion, and the height of the first annular projection is cyclic annular greater than second convex The height risen；When cap body and mating cyclic annular contraction flow region, the first annular projection is caught in annular recess, the second annular projection with Cap body interference fit.First annular projection height is greater than the second annular projection height, and the first annular projection and annular recess are clamped Cooperation forms first of sealing；Second annular projection and cap body inner wall are interference fitted, and realize second sealing, and two seals are protected Card water or other materials will not enter in cap body and shell；In addition, the first, second annular projection with cyclic annular contraction flow region Integrated injection molding, it is easy to use, and the service life is longer, need in addition to install sealing ring additional as compared with the past and sealing ring because It needs to replace for senile cause, said structure design is more practical, without considering replacement sealing ring.

Based on the processing method of above-mentioned water proof type thermometer outer shell, include the following steps: to design according to shell predetermined shape First mold, by shell integrated injection molding, then carries out local polishing to form portion from button center position into glue；It presses The second mold is designed according to cap body predetermined shape, by the second mold by cap body integrated injection molding, the button angle position of cap body inner wall Place forms annular recess.The utility model clinical thermometer shell is located at button center in injection molding, into glue position, designs this position Being set into glue point can solve product injection molding current mark, form portion one reduction of area shadow, form portion position welding trace problem；Because of plastics Weld mark and flowing lines when heating flowing is final cooling, because form portion position needs higher light transmittance cannot have Trace；It further says, the integraty of cap body also plays the effect made something perfect even more perfect, inside traditional structural design clinical thermometer cap body It needs plus two button angles position is connected with shell, inside cap body, mold can not accomplish integrated effect for general angle position of detaining；The above method Button angle position is made into the intracorporal integral type ring structure of cap, the strong drag mode structure of mold manufacture is met, can make inside cover Any surface finish is seamless, strengthens the Integral sealing of product.

A kind of electronic thermometer, including wiring board and waterproofness thermometer outer shell as described above, wiring board are inserted into In the cavity of shell, wiring board, which is equipped with, is used to show the liquid crystal display read, at the liquid crystal display at form portion position.

Compared with prior art, the utility model has the beneficial effects that

1. the water proof type clinical thermometer shell of the utility model directlys adopt plastic material integrated injection forming, form portion Inside and outside not intercommunication, water and other materials cannot propagate into inside.

2. key position is all made of single injection-molded and just reaches waterproof effect the utility model clinical thermometer shell everywhere, no Secondary operation is needed to handle, appearance is more succinct, and structure is simpler, without in addition setting waterproof construction.

3. distinguishing form face and shell face, accomplishes that the local polishing to form portion reaches good light transmittance, solve aobvious Show reading problems.

4. because the weld mark and flowing lines, viewing window when plastic heating flowing is final cooling need higher Light transmittance is so cannot have trace；To solve this problem, from the button center position of shell into glue when the utility model is processed, solution Determined single injection-molded viewing window position injection molding current mark problem.

Detailed description of the invention

Fig. 1 is the fractionation structural representation of the utility model thermometer outer shell.

Fig. 2 is the cross-sectional view after the thermometer outer shell assembling of the utility model.

Fig. 3 is the perspective view of the thermometer outer shell of the utility model.

Fig. 4 is the cross-sectional view of the thermometer outer shell disassembled form of the utility model.

Fig. 5 is the portion the A enlarged drawing of Fig. 2.

Fig. 6 is the portion the B enlarged drawing of Fig. 2.

Fig. 7 is the portion the A enlarged drawing of Fig. 4.

Fig. 8 is the disassembled form schematic diagram of the electronic thermometer of the utility model.

Specific embodiment

Specific embodiment of the present utility model is made a detailed explanation with reference to the accompanying drawing.

The reference azimuth of each component of the utility model is defined first, and the utility model description as described in orientation is based on body temperature Meter shell describes under lying status, at this point, form portion is in upward on main casing top surface.

Embodiment: a kind of water proof type thermometer outer shell, as shown in Figure 1-3, include cap body 1 and shell 2, the shell 2 Interior to be equipped with the cavity 3 for accommodating clinical thermometer wiring board, the shell 2 includes main casing 4 and form portion 5, and form portion 5 is set to master This side of the top surface 6 of shell 4, main casing 4 and form portion 5 use plastic material integrated injection forming, are sunken to master under form portion 5 4 top surface 6 of shell and form portion 5 have local transparent face 7, and 5 medial surface of form portion is flushed with the medial surface 8 of main casing 4.

Specifically, as shown in Fig. 2, the distance that 5 lateral surface of form portion is lower than main casing top surface 6 is 1mm.

As shown in Figure 1,5, button 9 is equipped at 5 position of form portion on main casing top surface 6, button 9 is surrounded by ring Interconnecting piece 11 between 9 bottom surrounding of button and main casing 4, the company are formed on shape sinking portion 10, the bottom in annular sinking portion 10 Socket part 11 is recessed arcuate shape, and button 9, interconnecting piece 11 and main casing 4 are integral type injection molding.

Specifically, the width of interconnecting piece 11 be 1.5mm, interconnecting piece 11 with a thickness of 0.18mm；The lower end of interconnecting piece 11 Face 12 protrudes from the medial surface 8 of main casing 4.Annular sinking portion 10 has first side 13 and second side 14, first side 13 On main casing 4, second side 14 is the outside circumference of button 9, from main casing top surface 6 to 8 direction of main casing medial surface, the One side 13 is to be obliquely installed towards 9 direction of button, and 13 gradient of first side is greater than second side 14.

As shown in Fig. 1,2,4,6,7, main casing 4 has for installing the front 15 of temperature-sensitive head and for being inserted into wiring board Tail portion 16, be equipped in tail portion 16 one to the cyclic annular contraction flow region 17 mating with cap body 1, opened up on cyclic annular contraction flow region 17 There is at least twice annular protrusion 18, the annular recess 19 cooperated with annular protrusion 18, cap body 1 and cyclic annular receipts are equipped in cap body 1 When contracting portion 17 is mating, corresponding annular projection 18 is stuck in annular recess 19.

Specifically, twice annular protrusion, respectively the first annular projection of arc are offered on cyclic annular contraction flow region 17 171 and second annular projection 172, the first annular projection 171 be in the position closer to form portion 5, and the first annular projection 171 Height be greater than the second annular projection 172 height；Shape, size and the annular recess 19 of first annular projection 171 match, When cap body 1 and mating cyclic annular contraction flow region 17, the first annular projection 171 is caught in annular recess 19, the second annular projection 172 It is interference fitted with cap body 1.

It is to design the first mold according to shell predetermined shape based on the processing method of above-mentioned water proof type thermometer outer shell, From button center position into glue, by shell integrated injection molding, local polishing then is carried out to form portion；According to cap body preboarding Shape designs the second mold, and by the second mold by cap body integrated injection molding, it is recessed that the button angle position place of cap body inner wall forms ring-type Slot.

A kind of electronic thermometer, as shown in figure 8, including wiring board 20 and foregoing waterproofness thermometer outer shell, Wiring board 20 is inserted into the cavity of shell 2, and wiring board 20 is equipped with the liquid crystal display (not shown) for showing reading, described At liquid crystal display at 5 position of form portion.

Above content is only illustrate to examples for clearly illustrating the present invention described in this specification.The utility model Person of ordinary skill in the field can make various modifications or additions to the described embodiments or using class As mode substitute, content without departing from the utility model specification or surmount model defined in the claims It encloses, all should belong to the protection range of the utility model.

Claims (9)

1. a kind of water proof type thermometer outer shell, including cap body and shell, it is characterised in that: be equipped in the shell and accommodate body temperature The cavity of wiring board is counted, the shell includes main casing and form portion, and form portion is set to this side of the top surface of main casing, main Shell and form portion are integral type injection molding, and form subordinate, which is sunken to main casing top surface and form portion, has local transparent face, depending on Window portion medial surface is flushed with main casing medial surface.

2. according to water proof type thermometer outer shell described in claim 1, it is characterised in that: form portion lateral surface is lower than main casing top surface 0.5-2mm。

3. according to water proof type thermometer outer shell described in claim 1, it is characterised in that: close to form position on main casing top surface It sets place and is equipped with button, button is surrounded by annular sinking portion, and button bottom surrounding and main casing are formed on the bottom in annular sinking portion Between interconnecting piece, the interconnecting piece be recessed arcuate shape, button, interconnecting piece and main casing be integral type injection molding.

4. according to water proof type thermometer outer shell as claimed in claim 3, it is characterised in that: the width of interconnecting piece is 1-3mm, interconnecting piece With a thickness of 0.15-0.2mm.

5. according to water proof type thermometer outer shell as claimed in claim 3, it is characterised in that: annular sinking portion has first side and the Two side faces, first side are on main casing, and second side is the outside circumference of button, from main casing top surface on the inside of main casing Face direction, first side are to be obliquely installed towards push-button, and first side gradient is greater than second side.

6. according to water proof type thermometer outer shell as claimed in claim 3, it is characterised in that: the lower end surface of interconnecting piece protrudes from main casing Medial surface.

7. according to water proof type thermometer outer shell described in claim 1, it is characterised in that: main casing has for installing temperature-sensitive head Front and tail portion for being inserted into wiring board are equipped with one to the cyclic annular contraction flow region mating with cap body, in ring in tail portion Offer at least twice annular protrusion on shape contraction flow region, be equipped with the annular recess that cooperate with annular protrusion in cap body, cap body and When cyclic annular contraction flow region is mating, corresponding annular projection is stuck in annular recess.

8. according to water proof type thermometer outer shell as claimed in claim 7, it is characterised in that: offer bipassage ring on cyclic annular contraction flow region Shape protrusion, respectively the first annular projection and the second annular projection, the first annular projection are in the position closer to form portion, and The height of first annular projection is greater than the height of the second annular projection；When cap body and mating cyclic annular contraction flow region, first is cyclic annular Protrusion is caught in annular recess, and the second annular projection and cap body are interference fitted.

9. a kind of electronic thermometer, it is characterised in that: including wiring board and such as the described in any item water proof types of claim 1-8 Thermometer outer shell, wiring board are inserted into the cavity of shell, and wiring board is equipped with the liquid crystal display for showing reading, the liquid At brilliant screen at form portion position.