CN209434091U - A kind of single-pole double throw explosion-proof pressure formula temperature controller with auxiliary switch - Google Patents
A kind of single-pole double throw explosion-proof pressure formula temperature controller with auxiliary switch Download PDFInfo
- Publication number
- CN209434091U CN209434091U CN201920296023.XU CN201920296023U CN209434091U CN 209434091 U CN209434091 U CN 209434091U CN 201920296023 U CN201920296023 U CN 201920296023U CN 209434091 U CN209434091 U CN 209434091U
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- Prior art keywords
- switch
- auxiliary
- temperature controller
- explosion
- partition
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- 238000005192 partition Methods 0.000 claims abstract description 35
- 230000000712 assembly Effects 0.000 claims abstract description 27
- 238000000429 assembly Methods 0.000 claims abstract description 27
- 235000014676 Phragmites communis Nutrition 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 5
- 238000004880 explosion Methods 0.000 abstract description 9
- 230000002265 prevention Effects 0.000 abstract description 4
- 238000010892 electric spark Methods 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 5
- 239000002775 capsule Substances 0.000 description 4
- 239000003822 epoxy resin Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 229920000647 polyepoxide Polymers 0.000 description 3
- 238000005057 refrigeration Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000002360 explosive Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005422 blasting Methods 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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- Thermally Actuated Switches (AREA)
Abstract
A kind of single-pole double throw explosion-proof pressure formula temperature controller with auxiliary switch, the switch sections of the temperature controller form double cavity structure explosion-proof chamber by partition, main switch case assembly and switch cap assemblies, using sliding hole axle tight fit structure between primary push rod, auxiliary push-rod and partition, tight fit, fit clearance≤0.1mm, length of fit >=2mm are used between partition, main switch case assembly and the plate body for switching cap assemblies and between corresponding plate body and public terminal, master control terminal, auxiliary terminal and additional terminal.Since the components of electric spark can will likely be generated with minimum space and exit is enclosed in a double cavity structure seal chamber, so being able to achieve the explosion prevention function of the single-pole double throw compression-type temperature controller with auxiliary switch, former temperature controller outer dimension will not be increased.
Description
Technical field
The utility model relates to compression-type temperature controller technical field, in particular to a kind of single-pole double throw with auxiliary switch is anti-
Quick-fried compression-type temperature controller.
Background technique
Compression-type temperature controller is widely used in the refrigeration control of refrigerator, refrigerator etc., by the temperature for incuding box house
Degree lifting enables its microswitch on-off, to control the start-stop of refrigeration compressor and realize temperature control.Compression-type temperature controller
Main switch component usually enters alternating current power supply circuit with refrigeration compressor series connection, makes refrigerator, cold by controlling compressor start-stop
Cabinet obtains preset temperature range.Some compression-type temperature controllers are additionally provided with an auxiliary switch component, connection door lamp switch etc. its
Its electrical part, is connected in general, all electric appliances are disconnected when adjustment axis is screwed to forced shutdown position.Some pressure type temperature
Control device also requires main switch component to have single-pole double throw structure, and increased contact is connected when compressor disconnects, for connecing one
Indicator light is to indicate that cryogenic temperature has reached desirable value.
Due to the needs of environmental protection and energy saving, more and more refrigerators, refrigerator etc. use the flammable refrigerant such as R600a, it is desirable that
Temperature controller has explosion prevention function, is set off an explosion with preventing contingency coolant leakage spark ignition caused by temperature controller contact
Accident.Anti-burst temperature controller generally uses " closed tripper " structure, that is, allow the mixture of flammable refrigerant and air into
Enter in explosion-proof chamber and by contact spark ignition, but this combustion explosion will not destroy explosion-proof chamber and can not travel to outside chamber.In
State's patent CN2412189Y " explosion-proof pressure thermoregulator " discloses such a blast resistance construction, is by switch enclosure and partition structure
At explosion-proof chamber, push rod cooperates sliding action to drive microswitch by passing through the hole axle of partition, by sufficiently small fit clearance
The propagation of detonation is prevented with sufficiently long length of fit.But the blast resistance construction of the patent disclosure is only single-pole single-throw(SPST structure；
And between partition and switch enclosure, terminal be pierced by switch enclosure will epoxy resin sealing, production operation trouble, need a period of time
Epoxy resin cure is waited, just can be carried out next work step, thus production efficiency is lower.Become by the components that epoxy resin encapsulates
Non-disconnectable inloading part.
Utility model content
The single-pole double throw explosion-proof pressure formula with auxiliary switch that the technical problem to be solved by the present invention is to provide a kind of
Temperature controller.It will generate active, static contact and single-pole double-throw switch (SPDT), the auxiliary switch of arc spark by two-chamber sealing structure
It is sealed in two small seal chambers of internal capacity respectively, had both been able to achieve explosion-proof purpose, also without increasing former compression-type temperature controller
Outer dimension facilitates the design of refrigerator, refrigerator producer to temperature controller installation site
The technical solution that the utility model is proposed is such that
A kind of single-pole double throw explosion-proof pressure formula temperature controller with auxiliary switch, including ontology, bellows lever, capsule stack,
Main switch case assembly, shutdown plate, shutdown spring, adjusts axle assembly, main spring, sliding block at shutdown lever, and the bellows lever is logical
Two sides fulcrum expansion bearing is crossed on the corresponding two sidewalls of ontology, the shutdown lever is mounted in ontology one side wall and forms pendulum
Activity supporting point, and by it is described adjust axle assembly driving and swing, be equipped with partition, switch cap assemblies, primary push rod, auxiliary push-rod,
Reed and auxiliary switch are connected, it is double that the partition, main switch case assembly, switch cap assemblies are successively fitted close composition from top to bottom
Cavity configuration explosion-proof chamber, the slot that the rectangular primary push rod passes through the partition is slidably connected, described circular auxiliary
The round hole that boosting bar passes through the partition is slidably connected, and the connection reed one end being located in the switch cap assemblies is opened with master
Close the tune gap screw Elastic Contact connection of the conductive metal in case assembly, the connection reed other end and additional terminal Elastic Contact
Connection.
Between the partition and the plate body of main switch case assembly surrounding and with public terminal, master control terminal, auxiliary terminal it
Between be tight fit, fit clearance≤0.1mm, length of fit >=2mm.
The main switch case assembly plate body two sides are equipped with 4 overhead kick convex portions, and the switch cap assemblies pass through 4 overhead kick convex portions
With the close snapping of main switch case assembly, the main switch case assembly and switch cap assemblies surrounding plate body between and additional terminals
It is tight fit, fit clearance≤0.1mm, length of fit >=2mm between son and switch cover component plate body.
The working principle and the course of work of this single-pole double throw explosion-proof pressure formula temperature controller with auxiliary switch are such that work as
When temperature-sensitive temperature rises or falls, capsule stack expansion or shrinkage pushes bellows lever around branch spot wobble, pushes main switch box group
The main contact switch of part is switched on or switched off.Adjusting axle assembly is turned, sliding block changes with the lift of regulating cam of temp and changes position
It sets, by the effect of the plate that shuts down, shut down spring, main spring, and temperature controller is made to change operating temperature.It is disconnected when main contact switchs
When, active contact is electric by adjusting the connection reed of gap screw and switch cap assemblies to obtain the 1st terminal, to realize temperature controller
Single-pole double-throw switch (SPDT) function.When adjusting axle assembly is screwed to forced shutdown position, cam makes driving shutdown lever swing
Temperature controller auxiliary switch disconnects.
Since the hole axle of primary push rod and auxiliary push-rod and partition is slidably matched with sufficiently small fit clearance (≤0.1mm)
With sufficiently long length of fit (>=2mm), and surrounding plate body, main switch case assembly and the switch cover of partition and main switch case assembly
The cooperation of the surrounding plate body of component all has sufficiently small fit clearance (≤0.1mm) and sufficiently long length of fit (>=2mm),
And the periphery cooperation that public terminal, master control terminal, auxiliary terminal, additional terminal are stretched out outside corresponding plate body is to have enough
The tight fit of small fit clearance (≤0.1mm) and sufficiently long length of fit (>=2mm), thus even if explosive gas passes through
Gap enters inside switch enclosure and by contact spark ignition, and can not ignite external explosive gas, to realize
The explosion prevention function of single-pole double throw compression-type temperature controller with auxiliary switch.
Compared with prior art, the utility model has the following beneficial effects:
(1) the utility model is due to being provided with partition, and makes two to slide close-fitting primary push rod and auxiliary with partition
Push rod is changed into linear motion from original pendulum motion, realizes the temperature control on-off and forced shutdown of temperature controller, meanwhile, it should
Partition also becomes the important component in this temperature controller blast resistance construction.
(2) the utility model is additionally arranged opening for electric connection reed using the conduction property of the tune gap screw of metal
Cap assemblies are closed, the movement of temperature controller single-pole double-throw switch (SPDT) is realized, which also becomes in this temperature controller blast resistance construction
Important component.
(3) the main innovation of the utility model be most possibly generate arc spark main contact switch, it is auxiliary
It helps around switch and single-pole double-throw switch (SPDT) and a double cavity structure seal chamber is designed with minimum space, realize the list with auxiliary switch
The explosion prevention function of dpdt double-pole double-throw (DPDT) compression-type temperature controller.Simultaneously also without increasing the former non-explosion-proof single-pole double throw pressure with auxiliary switch
Formula temperature controller outer dimension provides very big convenience to the design of temperature controller installation site for refrigerator, refrigerator producer.
Detailed description of the invention
Fig. 1 is the structure of the single-pole double throw explosion-proof pressure formula temperature controller with auxiliary switch of the utility model one embodiment
Schematic diagram.
Fig. 2 is the schematic top plan view of partition shown in Fig. 1.
Fig. 3 is the schematic top plan view of main switch case assembly shown in Fig. 1.
Fig. 4 is the A-A schematic cross-sectional view of Fig. 3.
Fig. 5 is the schematic top plan view of switch cap assemblies shown in Fig. 1.
Fig. 6 is partition, switch case assembly and the expanded view for switching cap assemblies shown in FIG. 1.
Figure label indicates: 1. ontologies, 2. bellows levers, 2-1. fulcrum, 3. capsule stacks, 4. partitions, 4-1. rectangle
Hole, 4-2. round hole, 5. main switch case assemblies, 5-1. overhead kick convex portion, 5-2. public terminal, 5-3. master control terminal, 5-4. auxiliary
Terminal, the main static contact of 5-5., 5-6. active contact, 5-7. tune gap screw, 6. switch cap assemblies, 6-1. connection reed, 6-2. are attached
Adding terminal, 7. primary push rods, 8. auxiliary push-rods, 9. shutdown levers, 10. shutdown plates, 11. shutdown springs, 12. adjust axle assembly,
13. main spring, 14. sliding blocks.
Specific embodiment
The utility model is further elaborated by following example.
Referring to shown in Fig. 1 to Fig. 6, a kind of single-pole double throw explosion-proof pressure formula temperature controller with auxiliary switch, by ontology 1, film
Box lever 2, capsule stack 3, partition 4, main switch case assembly 5, switch cap assemblies 6, primary push rod 7, auxiliary push-rod 8, shutdown lever
9, shut down plate 10, shutdown spring 11, adjusting axle assembly 12, main spring 13 and the composition of sliding block 14, the partition 4, main switch box
Component 5, switch cap assemblies 6 successively closely combine to form two cavity configuration explosion-proof chambers from top to bottom, and the rectangular primary push rod 7 is worn
The slot 4-1 for crossing the partition 4 is slidably connected, and the circular auxiliary push-rod 8 passes through the round hole 4- of the partition 4
2 are slidably connected, and mounting means is: primary push rod 7, auxiliary push-rod 8 being first packed into partition 4, then partition 4 is packed into main switch box
The surrounding plate body of component 5, then the two is riveted on ontology 1, partition 4 and main switch case assembly 5 is tight fit, fit clearance≤
0.1mm, length of fit >=2mm, three, 4 top of partition protrusion crimp public terminal 5-2, the master of main switch case assembly 5 respectively
Control terminal 5-3, auxiliary terminal 5-4 corresponding site be also fit clearance≤0.1mm, length of fit >=2mm using tight fit,
After regulating gap screw 5-7 by action temperature property requirement needed for temperature controller, switch cap assemblies 6 are passed through 4 barbs
Convex portion 5-1 and 5 snapping of main switch case assembly, surrounding plate body is between cooperating between main switch case assembly 5 and switch cap assemblies 6 at this time
Gap≤0.1mm, length of fit >=2mm tight fit.The connection reed 6-1 of a piece of conduction is equipped in the switch cap assemblies 6,
One end is connect with the tune gap screw 5-7 Elastic Contact of the conductive metal in main switch case assembly 5, the other end and additional terminal
The connection of 6-2 Elastic Contact.The periphery that additional terminal 6-2 stretches out outside switch cap assemblies 6, which is matched, is combined into fit clearance≤0.1mm, cooperation
Length >=2mm tight fit.The bellows lever 2 is supported on the corresponding two sidewalls of ontology 1 by two sides fulcrum 2-1, with
Two sides fulcrum 2-1 is center of rotation reciprocally swinging, and right half section of promotion push rod 7 pushes the main switch in main switch case assembly 5 again
That is the on-off movement between public terminal 5-2 and master control terminal 5-3.When main switch disconnect when, i.e. active contact 5-6 with
Main static contact 5-5 separation, the back side of active contact 5-6 is contacted with the tune gap screw 5-7 of conductive metal at this time, passes through conductive company
The connection for meeting reed 6-1 makes public terminal 5-2 connect electric with additional terminal 6-2, to obtain the reverse of single-pole double-throw switch (SPDT)
Power supply, since reverse power supply circuit connects load very little (such as indicator light), such power supply circuit construction is it is ensured that it can
It works by ground.The shutdown lever 9 is mounted in 1 one side wall of ontology and forms swing pivot, by the adjusting axle assembly 12
Driving and swing, thus push auxiliary push-rod 8 push again the auxiliary switch in main switch case assembly 5 i.e. public terminal 5-2 with it is auxiliary
Help the disconnection between terminal 5-4.
The sliding of the hole axle of primary push rod 7 and auxiliary push-rod 8 and partition 4, which is fitted close to have, meets the sufficiently small of requirement of explosion proof
Fit clearance (≤0.1mm) and sufficiently long length of fit (>=2mm), but remain to swimmingly slide.Public terminal 5-2, master control
The cooperation that terminal 5-3, auxiliary terminal 5-4, additional terminal 6-2 stretch out hull outside is to be fitted close, and basic gapless meets
Requirement of explosion proof.Cooperation between partition 4 and main switch case assembly 5, between main switch case assembly 5 and switch cap assemblies 6 is tight
Close fit, basic gapless, meets requirement of explosion proof.Partition 4, main switch case assembly 5, switch cap assemblies 6 are without other holes and outside
Boundary communicates, and three constitutes a double cavity structure explosion-proof chamber.It surveys this temperature controller and has passed through blasting test.
Claims (3)
1. a kind of single-pole double throw explosion-proof pressure formula temperature controller with auxiliary switch, including ontology (1), bellows lever (2), bellows group
Part (3), shutdown lever (9), shutdown plate (10), shutdown spring (11), adjusts axle assembly (12), is main main switch case assembly (5)
Spring (13), sliding block (14), the bellows lever (2) is by two sides fulcrum (2-1) expansion bearing in the corresponding two sides of ontology (1)
On wall, the shutdown lever (9) is mounted in ontology (1) one side wall and forms swing pivot, and by the adjusting axle assembly
(12) driving and swing, it is characterised in that: be equipped with partition (4), switch cap assemblies (6), primary push rod (7), auxiliary push-rod (8),
Reed (6-1) and auxiliary switch are connected, the partition (4), main switch case assembly (5) switch cap assemblies (6) from top to bottom successively
It is fitted close and constitutes double cavity structure explosion-proof chamber, the slot (4-1) that rectangular primary push rod (7) passes through partition (4) slides
Connection, the round hole (4-2) that circular auxiliary push-rod (8) passes through partition (4) are slidably connected, and are located at the switch cap assemblies
(6) tune gap screw (5-7) Elastic Contact of the conductive metal in connection reed one end (6-1) and main switch case assembly (5) in
Connection, connection reed (6-1) other end are connect with additional terminal (6-2) Elastic Contact.
2. the single-pole double throw explosion-proof pressure formula temperature controller according to claim 1 with auxiliary switch, it is characterised in that: described
Between partition (4) and the plate body of main switch case assembly (5) surrounding and with public terminal (5-2), master control terminal (5-3), auxiliary end
It is tight fit, fit clearance≤0.1mm, length of fit >=2mm between sub (5-4).
3. the single-pole double throw explosion-proof pressure formula temperature controller according to claim 1 with auxiliary switch, it is characterised in that: described
Main switch case assembly (5) plate body two sides are equipped with 4 overhead kick convex portions (5-1), and the switch cap assemblies (6) pass through 4 overhead kick convex portions
(5-1) and the close snapping of the main switch case assembly (5), the surrounding plate of the main switch case assembly (5) and switch cap assemblies (6)
It is tight fit, fit clearance≤0.1mm, length of fit between body and between additional terminal (6-2) and switch cap assemblies (6) plate body
≥2mm。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920296023.XU CN209434091U (en) | 2019-03-08 | 2019-03-08 | A kind of single-pole double throw explosion-proof pressure formula temperature controller with auxiliary switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920296023.XU CN209434091U (en) | 2019-03-08 | 2019-03-08 | A kind of single-pole double throw explosion-proof pressure formula temperature controller with auxiliary switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209434091U true CN209434091U (en) | 2019-09-24 |
Family
ID=67978422
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920296023.XU Withdrawn - After Issue CN209434091U (en) | 2019-03-08 | 2019-03-08 | A kind of single-pole double throw explosion-proof pressure formula temperature controller with auxiliary switch |
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| Country | Link |
|---|---|
| CN (1) | CN209434091U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109755070A (en) * | 2019-03-08 | 2019-05-14 | 佛山通宝华通控制器有限公司 | A kind of single-pole double throw explosion-proof pressure formula temperature controller with auxiliary switch |
| CN117747337A (en) * | 2024-02-21 | 2024-03-22 | 山西王家岭煤业有限公司 | Mine tunnel high-voltage explosion-proof circuit breaker |
-
2019
- 2019-03-08 CN CN201920296023.XU patent/CN209434091U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109755070A (en) * | 2019-03-08 | 2019-05-14 | 佛山通宝华通控制器有限公司 | A kind of single-pole double throw explosion-proof pressure formula temperature controller with auxiliary switch |
| CN109755070B (en) * | 2019-03-08 | 2024-06-07 | 佛山通宝华通控制器有限公司 | Single-pole double-throw explosion-proof pressure type temperature controller with auxiliary switch |
| CN117747337A (en) * | 2024-02-21 | 2024-03-22 | 山西王家岭煤业有限公司 | Mine tunnel high-voltage explosion-proof circuit breaker |
| CN117747337B (en) * | 2024-02-21 | 2024-04-12 | 山西王家岭煤业有限公司 | Mine tunnel high-voltage explosion-proof circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20190924 Effective date of abandoning: 20240607 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20190924 Effective date of abandoning: 20240607 |