CN204498393U - A kind of anti-dry thick film heater and a kind of soy bean milk making machine - Google Patents
A kind of anti-dry thick film heater and a kind of soy bean milk making machine Download PDFInfo
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- CN204498393U CN204498393U CN201520155678.7U CN201520155678U CN204498393U CN 204498393 U CN204498393 U CN 204498393U CN 201520155678 U CN201520155678 U CN 201520155678U CN 204498393 U CN204498393 U CN 204498393U
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Abstract
The utility model discloses a kind of anti-dry thick film heater and a kind of soy bean milk making machine, comprise the thick-film heating loop be arranged on parts to be heated, thick-film heating loop comprises heating resistor bar, power access end, described power access end is provided with the wire be connected with power supply, between power access end with wire, soldering is connected, described thick-film heating loop also comprises fixed mount, depart from parts, depart from parts and fixed mount, wire is connected, under thick film heater normal operating conditions, depart from the tearaway load that parts give wire trend disengaging power access end, under thick film heater dry-fire condition, soldering connects fusing, tearaway load makes wire be separated with power access end.Wire after this programme utilizes disengaging parts that soldering is fused directly departs from power access end, removes original thermal cut-off, not only can reduce the number of times of the soldering process of thick film, can also reduce the cost of thermal cut-off part.
Description
Technical field
The utility model relates to thick-film heating technical field, specifically, relates to a kind of thick film heater of anti-dry and a kind of soy bean milk making machine adopting the thick film heater of this anti-dry.
Background technology
The Thermal protection of current thick-film heating technology generally adopts two-layer anti-dry to protect, ground floor adopts recoverable thermostat to protect, Thermal protection i.e. a last segment protect of the second layer then adopt expendable thermal cut-off to protect, the Thermal protection thermal cut-off of the second layer is connected with the heating track layer of thick film, when thick-film heating temperature arrive the jumping of ground floor break temperature time, thermostat will jump disconnection to protect heating circuit, if when temperature raises further and arrives thermal cut-off fusing-off temperature, so thermal cut-off will fuse thus disconnect heating track layer, but the thermal cut-off that existing thick film technology adopts is all must again change after disposable breakage, and need to be welded to separately on thick film circuit.
Summary of the invention
The object that the utility model will reach just is to provide simple, the easily manufactured a kind of anti-dry thick film heater of a kind of structure.
In order to achieve the above object, the utility model adopts following technical scheme: a kind of anti-dry thick film heater, comprise the thick-film heating loop be arranged on parts to be heated, thick-film heating loop comprises heating resistor bar, power access end, described power access end is provided with the wire be connected with power supply, between power access end with wire, soldering is connected, described thick-film heating loop also comprises fixed mount, depart from parts, depart from parts and fixed mount, wire is connected, under thick film heater normal operating conditions, depart from the tearaway load that parts give wire trend disengaging power access end, under thick film heater dry-fire condition, soldering connects fusing, tearaway load makes wire be separated with power access end.
Further, described disengaging parts are spring, and spring one end is arranged on fixed mount, and the spring other end is connected with wire, and the pulling force that spring elongation produces gives the tearaway load that wire trend departs from power access end.
Further, described disengaging parts are shell fragment, and shell fragment one end is arranged on fixed mount, and the shell fragment other end is connected with wire, and the elastic force that shell fragment deformation produces gives the tearaway load that wire trend departs from power access end.
Further, described disengaging parts are ferromagnetic original paper, ferromagnetic original paper comprises the first ferromagnetic unit be arranged on fixed mount, the second ferromagnetic unit be arranged on wire, attracts each other or repel the tearaway load giving wire and tend to depart from power access end between the first ferromagnetic unit and the second ferromagnetic unit.
Further, described fixed mount is the shielding casing be located on power access end, and power access end is positioned at shielding casing, shielding casing is offered the through hole passed for wire.
Further, the fusing point of described soldering connection is between 220 DEG C to 300 DEG C.
Further, the junction of described disengaging parts and wire arranges insulation cushion.
Further, described thick-film heating loop comprises at least two power access ends, wherein 1 power access end compares other power access ends closer to heating resistor bar, and described disengaging parts give the active force of the wire trend disengaging power access end of this power access end.
Further, described thick-film heating loop comprises at least two power access ends, the fusing point of the fusable link that the fusing point of fusable link that wherein 1 power access end adopts adopts lower than other power access ends, the wire trend that described disengaging parts give this power access end departs from the active force of power access end.
Further, a kind of soy bean milk making machine, comprises and pulverizes motor, reducing mechanism, container, heater, and described pulverizing motor drives reducing mechanism to run, and described heater heats container, and described heater adopts the aforesaid anti-dry thick film heater of claim.
After adopting technique scheme, the utility model tool has the following advantages: this programme removes thermal cut-off of the prior art, directly utilize power access end pick out soldering on wire as hot fuse protecting device use, the more employing silver electrodes of power access end due to existing thick film heater, and it is comparatively difficult silver electrode layer to carry out soldering, remove the number of times that original thermal cut-off not only can reduce soldering process, the cost of thermal cut-off part can also be reduced, and the wire after this programme utilizes disengaging parts to make soldering fuse directly departs from power access end, prevent soldering fuse after conductive contact thick film heater on conductor or by the conductor on heater block, electric shock accidents is avoided to occur.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail:
Fig. 1 is the structural representation of the utility model embodiment one;
Fig. 2 is the profile of the utility model fuse protection assembly;
Fig. 3 is the structural representation that the utility model soldering connects;
Fig. 4 is the partial enlarged drawing of the utility model power access end;
Fig. 5 is the structural representation of the utility model embodiment two;
Fig. 6 is the structural representation of the utility model embodiment three;
Fig. 7 is the structural representation of the utility model embodiment four.
Fig. 8 is the structural representation of the utility model embodiment five.
Embodiment
Embodiment one:
Referring to figs. 1 through Figure 4 shows that embodiment one of the present utility model, a kind of anti-dry thick film heater comprises the thick-film heating loop 2 be arranged on parts 1 to be heated, thick-film heating loop comprises heating resistor bar 21, power access end 22, described power access end 22 is provided with the wire 23 be connected with power supply, between power access end 22 with wire 23, soldering is connected, described thick-film heating loop 2 also comprises fixed mount 24, departs from parts 25, departs from parts 25 and is connected with fixed mount 24, wire 23.
Referring to Fig. 1 and Fig. 2, described parts to be heated 1 are single-revolution staving, the lower external face of heater block 1 is attached with thick film heater, thick film heater layering sintering is on heater block 1, comprise insulating barrier from the inside to the outside, heating track layer, conductive layer, electrode layer, coating layer, heating resistor bar 21 is positioned at heating track layer, power access end 22 is the electrodes on electrode layer, in this example, the quantity of power access end 22 is two, each heating resistor bar 21 and power access end 22 are connected by conductive layer, wire 23 is welded on power access end 22 by tin solder 26, thus make the electric current of power supply flow into thick-film heating loop 2, fixed mount 24 is for being located at the shielding casing on power access end 22, power access end 22 is positioned at shielding casing, in this example, shielding casing is a rectangular hollow housing, the bottom surface of housing is that a hollow out face is used for cover and establishes power access end 22, faced by hollow out, accurate power access end 22 passes through clamping, sticky glutinous or other connected modes are fixed on thick film heater, shielding casing itself preferably adopts non-conducting material to conduct electricity after preventing wire 23 and body contact, shielding casing is offered the through hole 241 passed for wire 23, also be provided with between fixed mount 24 and wire 23 and depart from parts 25, departing from parts 25 in this example is tension springs, tension spring two ends are provided with two pulling buckles 251, fixed mount 24 is provided with a clasp 242, a pulling buckle 251 of tension spring is connected with clasp 242, another clasp of tension spring is connected with wire 23, depart from the tearaway load that parts 25 give wire 23 trend disengaging power access end 22, wire 23 is preferably pulled to the end face of the housing of fixed mount 24 by the direction of tearaway load, wire 23 can be prevented like this with the conductor on thick film heater or by the conductor contact on heater block 1, occur to avoid electric shock accidents.
Referring to Fig. 3 and Fig. 4, described two power access ends 22 are divided into high-melting-point access point 221, low melting point access point 222, the fusing point of two soldering access points is between 220 DEG C to 300 DEG C, higher than 220 DEG C this be the protection temperature of protection temperature higher than recoverable thermostat in order to ensure fuse protection, recoverable thermostat is made to be able to normal work, recoverable thermostat is avoided also not jump disconnected protection, soldering access point is with regard to fuse protection, because the fusing-off temperature of general soldering material can not be too high lower than 300 DEG C, and the fusing-off temperature too high dry combustion method for thick film heater protection is unfavorable, the accidents such as spontaneous combustion may be caused, the gap of the fusing-off temperature of high-melting-point access point 221 and low melting point access point 222 is generally more than 10 DEG C, after such low melting point access point 222 fuses and departs from, high-melting-point access point 221 does not also start fusing or the disengaging that also do not fuse completely, only need thus to arrange fixed mount 24 on low melting point access point 222, depart from parts 25 and just can reach the effect of carrying out fuse protection, avoid the soldering fusing point due to each power access end similar and need to arrange fixed mount at each power access end and depart from parts, save cost of parts, certainly it is also same for having plural power access end for thick-film heating loop, there is the soldering fusing point of an incoming end can lower than the soldering fusing point of other incoming ends, fixed mount 24 and disengaging parts 25 are just arranged on this incoming end.
After have employed above-mentioned anti-dry thick film heater, remove thermal cut-off of the prior art, directly utilize power access end 22 pick out soldering on wire 23 as hot fuse protecting device use, due to power access end many employings silver electrode of existing thick film heater, and it is comparatively difficult silver electrode layer to carry out soldering, remove the number of times that original thermal cut-off not only can reduce soldering process, the cost of thermal cut-off part can also be reduced, and the wire 23 after this programme utilizes disengaging parts 25 to make soldering fuse directly departs from power access end 22, wire 23 after preventing soldering from fusing contacts conductor on thick film heater or by the conductor on heater block, electric shock accidents is avoided to occur, promote the fail safe of thick film heating device, maintenance only needs again welding lead 23, reduce maintenance cost.
Embodiment two:
With reference to Figure 5 shows that embodiment two of the present utility model, be with the difference of embodiment one: described two power access ends 22 are divided into closely access point 223, remote accessing point 224, because closely access point 223 is from the close together of heating resistor bar 21, in the process that heating resistor bar 21 heats, temperature around heating layer heating resistor bar 21 is a process of conducting gradually, from the time, closely time of arriving fusing point than remote accessing point 224 time of the arrival fusing point of access point 223 is Zao, so after heating resistor bar 21 starts heating, closely the temperature of access point 223 first raises, closely access point 223 is always higher than remote accessing point 224 in the temperature put at the same time, when closely access point 223 temperature arrives fusing-off temperature, the tin solder 26 be welded on above closely access point 223 starts to melt, until thoroughly melt disconnected, wire 23 is thrown off with closely access point 223 due to the tearaway load departing from parts 25, so circuit disconnects, and the temperature of remote accessing point 224 does not also arrive the time of fusing-off temperature or fusing not enough, so wire 23 and remote accessing point 224 still link together, only need thus to arrange fixed mount 24 on closely access point 223, depart from parts 25 and just can reach the effect of carrying out fuse protection, avoid the temperature due to each power access end identical and need to arrange fixed mount at each power access end and depart from parts, thus saved cost of parts.
Certainly can understand, it is also same for having plural power access end for thick-film heating loop, what have an incoming end must apart from can than close to the coming of other incoming ends from heating resistor bar 21, fixed mount 24 and depart from parts 25 and be just arranged on this incoming end.
Embodiment three:
With reference to Figure 6 shows that embodiment three of the present utility model, be with the difference of above-described embodiment: described disengaging parts 25 are shell fragments, the housing of described fixed mount 24 is provided with stud bolt hole 61, shell fragment one end is connected by screw on stud bolt hole 61, the shell fragment other end is in clamping connection mutually by card line 62 and wire 23, one piece of insulation cushion 63 is also provided with between preferred shell fragment 25 and wire 23, to prevent conducting between shell fragment and wire 23, shell fragment has been applied in an elastic deformation after mounting, under thick film heater normal operating conditions, the elastic force that this elastic deformation produces gives wire 23 and trends towards departing from power access end 22, under thick film heater dry-fire condition, tin solder 26 fuses, bed knife between wire 23 and power access end 22 is removed, the elastic force that elastic deformation produces makes wire 23 be separated with power access end 22.
Embodiment four:
With reference to Figure 7 shows that embodiment four of the present utility model, be with the difference of above-described embodiment: described disengaging parts 25 are ferromagnetic original papers, ferromagnetic original paper comprises the first ferromagnetic unit 71 and the second ferromagnetic unit 72, the top of fixed mount 24 is formed with a mounting groove 73, first ferromagnetic unit 71 is arranged in mounting groove 73, mounting groove 73 top is provided with fixed block 74, the first ferromagnetic unit 71 compacting is used for be fixed in mounting groove 73, second ferromagnetic unit 72 is arranged on wire 23, second ferromagnetic unit 72 is connected with wire 23 by card line 75, preferred first ferromagnetic unit 71 and the second ferromagnetic unit 72 are just to setting, make the absorption affinity between the first ferromagnetic unit 71 and the second ferromagnetic unit 72 larger, under thick film heater normal operating conditions, this absorption affinity gives wire 23 and trends towards departing from power access end 22, under thick film heater dry-fire condition, tin solder 26 fuses, bed knife between wire 23 and power access end 22 is removed, absorption affinity first ferromagnetic unit 71 is inhaled with the second ferromagnetic unit 72 and is made wire 23 be separated with power access end 22 together.
Understandable, what produce between described first ferromagnetic unit 71 and the second ferromagnetic unit 72 also can be repulsive force, first ferromagnetic unit 71 is arranged on the bottom of fixed mount 24, and the repulsive force between the first ferromagnetic unit 71 and the second ferromagnetic unit 72 gives wire 23 and trends towards departing from power access end 22.
Embodiment five:
With reference to Figure 8 shows that embodiment five of the present utility model, a kind of soy bean milk making machine, comprise head 81, reducing mechanism 82, container 83, heater 84, pulverize motor 85, described head 81 is buckled on container 83, described pulverizing motor 85 is arranged in head 81, described pulverizing motor 85 drives reducing mechanism 82 to run, and described heater 84 pairs of containers 83 heat, described heater 84 adopt above-described embodiment when described in anti-dry thick film heater.
Except above preferred embodiment, the utility model also has other execution mode, those skilled in the art can make various change and distortion according to the utility model, only otherwise depart from spirit of the present utility model, all should belong to the scope that the utility model claims define.
Claims (10)
1. an anti-dry thick film heater, comprise the thick-film heating loop be arranged on parts to be heated, thick-film heating loop comprises heating resistor bar, power access end, it is characterized in that: described power access end is provided with the wire be connected with power supply, between power access end with wire, soldering is connected, described thick-film heating loop also comprises fixed mount, depart from parts, depart from parts and fixed mount, wire is connected, under thick film heater normal operating conditions, depart from the tearaway load that parts give wire trend disengaging power access end, under thick film heater dry-fire condition, soldering connects fusing, tearaway load makes wire be separated with power access end.
2. anti-dry thick film heater as claimed in claim 1, it is characterized in that: described disengaging parts are spring, spring one end is arranged on fixed mount, and the spring other end is connected with wire, and the pulling force that spring elongation produces gives the tearaway load that wire trend departs from power access end.
3. anti-dry thick film heater as claimed in claim 1, it is characterized in that: described disengaging parts are shell fragment, shell fragment one end is arranged on fixed mount, and the shell fragment other end is connected with wire, and the elastic force that shell fragment deformation produces gives the tearaway load that wire trend departs from power access end.
4. anti-dry thick film heater as claimed in claim 1, it is characterized in that: described disengaging parts are ferromagnetic original paper, ferromagnetic original paper comprises the first ferromagnetic unit be arranged on fixed mount, the second ferromagnetic unit be arranged on wire, attracts each other or repel the tearaway load giving wire and tend to depart from power access end between the first ferromagnetic unit and the second ferromagnetic unit.
5. the anti-dry thick film heater as described in Claims 1-4 any one, is characterized in that: described fixed mount is the shielding casing be located on power access end, and power access end is positioned at shielding casing, shielding casing is offered the through hole passed for wire.
6. the anti-dry thick film heater as described in Claims 1-4 any one, is characterized in that: the fusing point that described soldering connects is between 220 DEG C to 300 DEG C.
7. the anti-dry thick film heater as described in Claims 1-4 any one, is characterized in that: the junction of described disengaging parts and wire arranges insulation cushion.
8. the anti-dry thick film heater as described in Claims 1-4 any one, it is characterized in that: described thick-film heating loop comprises at least two power access ends, wherein 1 power access end compares other power access ends closer to heating resistor bar, and described disengaging parts give the active force of the wire trend disengaging power access end of this power access end.
9. the anti-dry thick film heater as described in Claims 1-4 any one, it is characterized in that: described thick-film heating loop comprises at least two power access ends, the fusing point of the fusable link that the fusing point of fusable link that wherein 1 power access end adopts adopts lower than other power access ends, the wire trend that described disengaging parts give this power access end departs from the active force of power access end.
10. a soy bean milk making machine, comprise and pulverize motor, reducing mechanism, container, heater, described pulverizing motor drives reducing mechanism to run, and described heater heats container, it is characterized in that: described heater adopts the anti-dry thick film heater described in claim 1 to 9 any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520155678.7U CN204498393U (en) | 2015-03-19 | 2015-03-19 | A kind of anti-dry thick film heater and a kind of soy bean milk making machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520155678.7U CN204498393U (en) | 2015-03-19 | 2015-03-19 | A kind of anti-dry thick film heater and a kind of soy bean milk making machine |
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| CN204498393U true CN204498393U (en) | 2015-07-22 |
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| CN201520155678.7U Active CN204498393U (en) | 2015-03-19 | 2015-03-19 | A kind of anti-dry thick film heater and a kind of soy bean milk making machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110392540A (en) * | 2017-01-17 | 2019-10-29 | 伊迪亚实验室有限责任公司 | Mixing plant and method |
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- 2015-03-19 CN CN201520155678.7U patent/CN204498393U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110392540A (en) * | 2017-01-17 | 2019-10-29 | 伊迪亚实验室有限责任公司 | Mixing plant and method |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |