CN209629643U - A kind of waterproof electronic clinical thermometer - Google Patents

Abstract

The utility model relates to a kind of waterproof electronic clinical thermometers, including cap body and shell, the shell includes main casing and form portion, button is equipped at form portion position on main casing top surface, button is surrounded by annular sinking portion, interconnecting piece between button bottom surrounding and main casing is formed on the bottom in annular sinking portion, and the interconnecting piece is recessed arcuate shape, and button, interconnecting piece and main casing are integral type injection molding.The utility model clinical thermometer button position just reaches waterproof effect using single injection-molded, does not need secondary operation processing, and appearance is more succinct, and structure is simpler, without in addition setting waterproof construction；And it uses section to design for U-shaped in structure between button and shell, increases key press stroke；There is pressing feel well while water proof and dust proof again.

Description

A kind of waterproof electronic clinical thermometer

Technical field

The utility model belongs to clinical thermometer technical field more particularly to a kind of waterproof electronic clinical thermometer.

Background technique

Conditional electronic clinical thermometer push-button design is generally silica gel button, but non-watertight, because of this electronic thermometer silicon Glue button and housing junction position and enclosure interior are intercommunications, and water or other substances are easy to be directly entered body from this position Temperature meter is internal, is needed if needing waterproof or preventing other substances from entering inside clinical thermometer to progress secondary operation at silica gel button Processing, such as patch waterproof membrane and the operation such as carry out ultrasonic bonding；But such waterproof effect is not easy to control, main cause It is that button needs long-term pressing operation, so that the time has grown waterproof membrane and can not be close to again, furthermore, the part space on circuit board Or thermal expansion and cold contraction effect, influence whether the compactness of waterproof membrane.

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, at button The clinical thermometer of permanent waterproof effect can be reached without carrying out secondary waterproof working process, the Waterproof clinical thermometer shape concise beauty It sees, 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 waterproof electronic clinical thermometer, including cap body and shell, the shell includes main casing and form portion, in master Button is equipped in housing top surface at form portion position, button is surrounded by annular sinking portion, the bottom shape in annular sinking portion At the interconnecting piece between button bottom surrounding and main casing, the interconnecting piece is recessed arcuate shape, button, interconnecting piece and master Shell is integral type injection molding.

This clinical thermometer press-button structure uses hermetically sealed integral molded plastic finished product, and uses and cut in structure between button and shell Face is designed for U-shaped, increases key press stroke；There is pressing feel well while water proof and dust proof again；The utility model The direct integrated injection molding of button does not have to secondary operation processing single injection-molded with regard to waterproof inside and outside isolation, by U-shaped connection design Handfeel of keys is reached well.It compares traditional handicraft and structure, this structure is more advanced.

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 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, 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.

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

The utility model clinical thermometer button position just reaches waterproof effect using single injection-molded, does not need secondary operation Processing, appearance is more succinct, and structure is simpler, without in addition setting waterproof construction；And between button and shell in structure It uses section to design for U-shaped, increases key press stroke；There is pressing feel well while water proof and dust proof again.

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 electronic thermometer of the present embodiment, as shown in figure 8, including wiring board 20 and thermometer outer shell, Thermometer outer shell includes shell 2, and shell 2 is equipped with form portion 5, and wiring board 20 is inserted into the cavity of shell 2, on wiring board 20 Equipped with for showing the liquid crystal display (not shown) of reading, at the liquid crystal display at 5 position of form portion.

Specifically, the thermometer outer shell is set in the shell 2 as shown in Figure 1-3, including cap body 1 and shell 2 There is 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 main casing This side of 4 top surface 6, main casing 4 and form portion 5 use plastic material integrated injection forming, are sunken to main casing under form portion 5 4 top surfaces 6 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.

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 (6)

1. a kind of waterproof electronic clinical thermometer, including cap body and shell, the shell includes main casing and form portion, feature It is: is equipped with button at form portion position on main casing top surface, button is surrounded by annular sinking portion, annular sinking portion Bottom form the interconnecting piece between button bottom surrounding and main casing, the interconnecting piece is recessed arcuate shape, button, company Socket part and main casing are integral type injection molding.

2. waterproof electronic clinical thermometer according to claim 1, it is characterised in that: annular sinking portion have first side with Second side, first side are on main casing, and second side is the outside circumference of button, from main casing top surface into main casing Side surface direction, first side are to be obliquely installed towards push-button, and first side gradient is greater than second side.

3. waterproof electronic clinical thermometer according to claim 1, it is characterised in that: the width of interconnecting piece is 1-3mm, connection Portion with a thickness of 0.15-0.2mm.

4. waterproof electronic clinical thermometer according to claim 1, it is characterised in that: the lower end surface of interconnecting piece protrudes from main casing The medial surface of body.

5. waterproof electronic clinical thermometer according to 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, be equipped with one to the cyclic annular contraction flow region mating with cap body, In in tail portion At least twice annular protrusion is offered on cyclic annular contraction flow region, and the annular recess cooperated with annular protrusion, cap body are equipped in cap body When mating with cyclic annular contraction flow region, corresponding annular projection is stuck in annular recess.

6. waterproof electronic clinical thermometer according to claim 5, it is characterised in that: offer twice on cyclic annular contraction flow region Annular protrusion, respectively the first annular projection and the second annular projection, the first annular projection are in the position closer to form portion, And first annular projection height be greater than the second annular projection height；When cap body and mating cyclic annular contraction flow region, the first ring Shape protrusion is caught in annular recess, and the second annular projection and cap body are interference fitted.