CN209116755U - A kind of electric furnace - Google Patents
A kind of electric furnace Download PDFInfo
- Publication number
- CN209116755U CN209116755U CN201821610519.1U CN201821610519U CN209116755U CN 209116755 U CN209116755 U CN 209116755U CN 201821610519 U CN201821610519 U CN 201821610519U CN 209116755 U CN209116755 U CN 209116755U
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- China
- Prior art keywords
- heat
- shell
- heat insulation
- generating disc
- pedestal
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Abstract
The utility model discloses a kind of electric furnace, including pedestal, and heat insulation is equipped on the pedestal, and electrothermal tube is equipped in the heat insulation, is equipped with heat-generating disc on the heat insulation, and the electrothermal tube for stretching out heat insulation is connected with heat-generating disc；Shell is installed on the pedestal below heat-generating disc, described shell one end is connected with pedestal, the shell other end is located between the lateral wall of heat-generating disc and the side wall of heat insulation, and there are gaps between the shell and heat-generating disc being located between the lateral wall of heat-generating disc and the side wall of heat insulation.A kind of electric furnace described in the utility model, structure is simple, effectively solves shell and significantly heats up vulnerable to the influence of electrothermal tube, use is safe.
Description
Technical field
The utility model relates to a kind of electric furnaces.
Background technique
Electric furnace is to convert electrical energy into thermal energy by electrothermal tube, is transferred to the thermal energy that electrothermal tube converts by heat-generating disc and adds
Hot object.
China is the largest electric furnace exported country, but will receive the limitation of foreign technology standard at outlet.European Union's publication
(EU) restrictive condition executed in No. 2017/1357 it is provided by resolution that EN 60335-2-9 standard, one are as follows: standard provides all outlets
The product of European Union's electric heating class, CE surface temperature rise limit value cancel double limit value.That is, the temperature rise that all relevant surfaces measure cannot surpass
The limit value of table Z101 is crossed, even if being not above twice of limit value, does not also allow to stick on " high temperature warning " mark in relevant surfaces.
But its shell of existing electric furnace is easy to be influenced by electrothermal tube, with the increase for using the time, is easy heating simultaneously
More than limit value, not only influence is used safe, but also influences sale.
Utility model content
The purpose of this utility model is to provide a kind of electric furnaces, and structure is simple, effectively solve shell vulnerable to electrothermal tube
Influence and significantly heat up, use is safe.
In order to achieve the above object, the technical solution of the present invention is:
A kind of electric furnace, including pedestal are equipped with heat insulation on the pedestal, electrothermal tube, institute are equipped in the heat insulation
It states and heat-generating disc is installed on heat insulation, the electrothermal tube for stretching out heat insulation is connected with heat-generating disc；The bottom below heat-generating disc
Shell is installed on seat, described shell one end is connected with pedestal, the shell other end be located at the lateral wall of heat-generating disc with it is heat-insulated
Between the side wall of block, and exist between the shell and heat-generating disc being located between the lateral wall of heat-generating disc and the side wall of heat insulation
Gap.
Opened up on the heat-generating disc side wall of heat insulation one end fluted, and the groove is located at the outside of heat-generating disc
Between wall and the side wall of heat insulation；The shell of the separate one end that is connected with pedestal is located in groove, and the side of shell and groove
There is gap in wall and bottom wall.
The distance between the shell and groove slot bottom are 3mm.
Insulation ring is installed, described insulation ring one end and groove slot bottom push against, the insulation ring other end in the groove
It is pushed against with pedestal；And the spacing between the shell in the insulation ring and groove is 2.5mm.
The pedestal includes bottom plate and the support frame that is mounted on bottom plate, the support frame as described above side wall close to heat-generating disc one end
On be recessed heat insulation storage groove, heat insulation is installed in heat insulation storage groove；The bottom on the outside of support frame
Shell is installed, there are gaps between the shell and support frame on plate.
The heat insulation is connected by stud with pedestal, and the first nut and the second nut are separately installed on the stud,
First nut pushes against the support frame of pedestal, and second nut pushes against the bottom plate of pedestal.
The shell uses the shell made of plastic cement.
The beneficial effects of the utility model are: a kind of electric furnace, structure is simple, effectively solves shell vulnerable to electrothermal tube
It influences and significantly heats up, use is safe.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
Embodiment 1
A kind of electric furnace as shown in Figure 1, including pedestal are equipped with heat insulation 1, installation in the heat insulation 1 on the pedestal
There is electrothermal tube 2, heat-generating disc 3 is installed on the heat insulation 1, the electrothermal tube 2 for stretching out heat insulation 1 is connected with heat-generating disc 3；Hair
Shell 4 is installed on the pedestal of 3 lower section of hot plate, described 4 one end of shell is connected with pedestal, and 4 other end of shell is located at
Between the lateral wall of heat-generating disc 3 and the side wall of heat insulation 1, and it is located between the lateral wall of heat-generating disc 3 and the side wall of heat insulation 1
There are gaps between the shell 4 and heat-generating disc 3.
Heat insulation 1 is used to be isolated the heat of most of downward radiation of the generation of heat-generating disc 3.
Exist between its shell 4 of existing electric furnace and heat-generating disc 3 and directly contact or mediate contact, either directly contact
Or mediate contact, heat-generating disc 3 can transfer heat to shell 4, so that it is heating up to be easy shell 4.The present embodiment by
There are gaps between shell 4 and heat-generating disc 3, while heat insulation 1 is equipped between heat-generating disc 3 and pedestal, what heat-generating disc 3 generated
Heat cannot be by pedestal indirect transfer to shell 4, so that it is easily heating up vulnerable to the influence of heat-generating disc 3 to reduce shell 4.
Fluted 5 are opened up on 3 side wall of the heat-generating disc of 1 one end of heat insulation, and the groove 5 is located at heat-generating disc 3
Lateral wall and heat insulation 1 side wall between；The shell 4 of the separate one end that is connected with pedestal is located in groove 5, and shell 4
There is gap with the side wall and bottom wall of groove 5.
Since one end of shell 4 is located in groove 5, and there is gap in the side wall and bottom wall of shell 4 and groove 5；Therefore
It can not only guarantee that there are gaps between shell 4 and heat-generating disc 3, avoid heat-generating disc 3 by its heat transfer to shell 4, Er Qieyou
It is located in groove 5 in one end of shell 4, gap setting under the premise of guaranteeing that heat dissipation is unobstructed, can effectively be kept away in groove 5
Exempt from dust impurity to fall in shell 4, to guarantee the normal use of electric furnace, avoid because dust impurity influences the normal of electric furnace
It uses.
The distance between the shell 4 and 5 slot bottom of groove are 3mm.
The present embodiment thinks that the distance between shell 4 and 5 slot bottom of groove are 3mm, the optimum value of 3mm.Pass through actual experiment
Analysis, if the distance between shell 4 and 5 slot bottom of groove are less than 3mm, the heat dissipation gap mistake formed between shell 4 and groove 5
Small, the heat that heat-generating disc 3 generates is not easy to be discharged from heat dissipation gap, and the heat being discharged from heat dissipation gap can be transferred to shell 4,
To make shell 4 heat up indirectly.If the distance between shell 4 and 5 slot bottom of groove are greater than 3mm, the air meeting flowed outside shell 4
Dust impurity outside shell 4 is flowed backward into 4 inside of shell by the gap between shell 4 and groove 5, so that isolation cannot be reached
Dust impurity falls to the effect in shell 4.
Insulation ring 6 is installed, described 6 one end of insulation ring and 5 slot bottom of groove push against, and the insulation ring 6 is another in the groove 5
One end and pedestal push against；And the spacing between the shell 4 in the insulation ring 6 and groove 5 is 2.5mm.
Insulation ring 6 described in the present embodiment plays the role of heat-insulated and reflection heat, is made of stainless steel.Insulation ring 6
The heat that the radiation of heat-generating disc 3 or so can be completely cut off is set.It is analyzed by actual experiment, although 6 energy of insulation ring made of stainless steel
Enough heats of 3 left and right sides of transmitting heat-generating disc, but stainless steel still can be thermally conductive.
The spacing between shell 4 in insulation ring 6 and groove 5 is 2.5mm, and 2.5mm is optimum value.If insulation ring 6 with it is recessed
The spacing between shell 4 in slot 5 is less than 2.5mm, then the heat transfer that insulation ring 6 can generate heat-generating disc 3 to shell 4；If
The spacing between shell 4 in insulation ring 6 and groove 5 is greater than 2.5mm, then between the shell 4 in insulation ring 6 and groove 5 between
Gap is excessive, and the dust impurity outside shell 4 can be flowed backward to 4 inside of shell by gap by the air flowed outside shell 4, thus cannot
Achieve the effect that completely cutting off dust impurity falls in shell 4.
The pedestal includes bottom plate 7 and the support frame 8 that is mounted on bottom plate 7, the support frame as described above close to 3 one end of heat-generating disc
It is recessed heat insulation storage groove 9 on 8 side walls, heat insulation 1 is installed in the heat insulation storage groove 9；8 outside of support frame
The bottom plate 7 on shell 4 is installed, there are gaps between the shell 4 and support frame 8.
The heat insulation 1 is connected by stud 10 with pedestal, and the first nut 11 and the are separately installed on the stud 10
Two nuts 12, first nut 11 push against the support frame 8 of pedestal, and second nut 12 pushes against the bottom plate 7 of pedestal.
The shell 4 uses the shell made of plastic cement.Shell 4 is changed to plastic cement material, plastic cement material standard temperature limit
It is 65K, the highest heating of shell 4 is restricted, scalds to reduce user because the temperature of shell 4 is excessively high.
The heat insulation 1 is fabricated by the raw material of following mass percent:
The advantages that glass fibre cotton good insulating, heat resistance are strong, corrosion resistance is good, high mechanical strength, it is resistance to there is also property is crisp
The disadvantages of mill property is poor.Cenosphere sound-proofing, anti-flammability, electrical insulating property are good, and density is small, and oil absorbency is low, and intensity is high.Glass
Glass microballon is light, low thermally conductive, higher intensity, good chemical stability.Diatomite is big with porosity, absorbability is strong, changes
Learn the features such as property is stable, wear-resisting, heat-resisting.
Since the property of glass fibre cotton is crisp, cenosphere and its intensity of glass microballoon are high, to make glass fibre cotton, glass
Being used in mixed way for microballon and cenosphere, can not only guarantee the heat-proof quality of heat insulation 1, and can be improved heat insulation 1
Intensity.
The wear-resisting property that the addition of diatomite simultaneously can be improved the arrangement of heat insulation 1 is good, so as to improve heat insulation 1
Firmness avoids because of the firmness that frictionally damage reduces glass fibre cotton embrittlement by heat insulation 1.
The requirement of IEC new standard, the surface temperature rise of shell 4 must not exceed 55K limit value (primary standard requires 110K) the present embodiment
The surface temperature rise of shell 4 be no more than 40K, well below standard requirements.It can manually be moved at any time in use process.
A kind of electric furnace of the present embodiment, structure is simple, effectively solves shell and significantly rises vulnerable to the influence of electrothermal tube
Temperature, use are safe.
Embodiment 2 to 5
It is the raw material quality percentage of heat insulation 1, the specific raw material quality of heat insulation 1 with 1 difference of embodiment
Percentage is shown in Table 1:
Table 1:
Experimental Comparison example
Comparative example 1: glass fibre cotton, diatomite and cenosphere are mixed and made into heat insulation, raw material matter in proportion
Measure percentage are as follows: glass fibre cotton 76%；Diatomite 6%；Cenosphere 18%.
Comparative example 2: glass fibre cotton, diatomite and glass microballoon are mixed and made into heat insulation, raw material matter in proportion
Measure percentage are as follows: glass fibre cotton 76%；Diatomite 6%；Glass microballoon 18%.
Comparative example 3: glass fibre cotton and diatomite are mixed and made into heat insulation, raw material quality percentage in proportion
Are as follows: glass fibre cotton 94%；Diatomite 6%.
The heat insulation of embodiment 1, comparative example 1, comparative example 2 and comparative example 3 is mounted in the electric cooker structure of embodiment 1,
And the brick that weight is 2.5kg is placed on heat-generating disc 3, the firmness of heat insulation, detection knot are detected under identical environment
Fruit is shown in Table 2:
Table 2:
As can be seen that comparative example 1 is when experiment was by 180 days from list above, heat insulation goes out under microscopical observation
Existing crackle；For comparative example 2 when experiment was by 150 days, heat insulation is cracked under microscopical observation, at 180 days, micro-
Crackle becomes larger under the observation of mirror；For comparative example 3 at 90 days, heat insulation was cracked under microscopical observation, at 120 days,
Crackle becomes larger under microscopical observation, and at 150 days, crackle was further enlarged under microscopical observation, at 180 days, meat
Eye has been able to observe crackle.Heat insulation used by the present embodiment was not also observed split under the microscope at 180 days
Line, so that its intensity of the heat insulation of the present embodiment use is above comparative example.
Claims (7)
1. a kind of electric furnace, it is characterised in that: including pedestal, be equipped on the pedestal heat insulation (1), in the heat insulation (1)
Be equipped with electrothermal tube (2), be equipped with heat-generating disc (3) on the heat insulation (1), stretch out heat insulation (1) the electrothermal tube (2) with
Heat-generating disc (3) is connected；It is equipped on the pedestal below heat-generating disc (3) shell (4), described shell (4) one end and pedestal phase
Even, shell (4) other end is located between the lateral wall of heat-generating disc (3) and the side wall of heat insulation (1), and is located at heat-generating disc
(3) there are gaps between the shell (4) and heat-generating disc (3) between the side wall of lateral wall and heat insulation (1).
2. a kind of electric furnace according to claim 1, it is characterised in that: the heat-generating disc (3) close to heat insulation (1) one end
It is opened up on side wall fluted (5), and the groove (5) is located between the lateral wall of heat-generating disc (3) and the side wall of heat insulation (1)；
The shell (4) of the separate one end that is connected with pedestal is located in groove (5), and shell (4) and the side wall and bottom wall of groove (5) are equal
There are gaps.
3. a kind of electric furnace according to claim 2, it is characterised in that: between the shell (4) and groove (5) slot bottom away from
From for 3mm.
4. a kind of electric furnace according to claim 2, it is characterised in that: be equipped with insulation ring (6), institute in the groove (5)
It states insulation ring (6) one end and groove (5) slot bottom pushes against, insulation ring (6) other end and pedestal push against；And the insulation ring
(6) spacing between shell (4) and in groove (5) is 2.5mm.
5. a kind of electric furnace according to claim 1, it is characterised in that: the pedestal includes bottom plate (7) and is mounted on bottom plate
(7) support frame (8) on is recessed heat insulation storage groove on support frame as described above (8) side wall of heat-generating disc (3) one end
(9), heat insulation (1) is installed in heat insulation storage groove (9)；It is equipped on the bottom plate (7) on the outside of support frame (8)
Shell (4), there are gaps between the shell (4) and support frame (8).
6. a kind of electric furnace according to claim 1, it is characterised in that: the heat insulation (1) passes through stud (10) and pedestal
It is connected, the first nut (11) and the second nut (12) is separately installed on the stud (10), first nut (11) pushes against
The support frame (8) of pedestal, second nut (12) push against the bottom plate (7) of pedestal.
7. a kind of electric furnace according to claim 1, it is characterised in that: the shell (4) uses the shell made of plastic cement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821610519.1U CN209116755U (en) | 2018-09-30 | 2018-09-30 | A kind of electric furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821610519.1U CN209116755U (en) | 2018-09-30 | 2018-09-30 | A kind of electric furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209116755U true CN209116755U (en) | 2019-07-16 |
Family
ID=67200040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821610519.1U Expired - Fee Related CN209116755U (en) | 2018-09-30 | 2018-09-30 | A kind of electric furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209116755U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357530A (en) * | 2018-09-30 | 2019-02-19 | 江苏如心智能科技有限公司 | A kind of electric furnace |
-
2018
- 2018-09-30 CN CN201821610519.1U patent/CN209116755U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357530A (en) * | 2018-09-30 | 2019-02-19 | 江苏如心智能科技有限公司 | A kind of electric furnace |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190716 Termination date: 20200930 |
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| CF01 | Termination of patent right due to non-payment of annual fee |