CN201114569Y

CN201114569Y - Guard unit for full electronic temperature control component break integrated circuit

Info

Publication number: CN201114569Y
Application number: CNU2007201132412U
Authority: CN
Inventors: 俞灵东; 江国强
Original assignee: WANMA GROUP ELECTRONIC CO Ltd ZHEJIANG PROV
Current assignee: WANMA TECHNOLOGY CO., LTD.
Priority date: 2007-08-10
Filing date: 2007-08-10
Publication date: 2008-09-10
Anticipated expiration: 2017-08-10

Abstract

The utility model relates to an integrated circuit security unit used in telephone SPC exchanges. The integrated circuit security unit is characterized by overvoltage and overcurrent automatic warning and automatic disconnection protection, eliminating fire hazards, safety and reliability. The utility model has the technical proposal that the components of the total electronic temperature controlling component disconnecting-typed integrated circuit security unit has the connective relation that two inlet wire reeds are respectively communicated with a switch K1 and a switch K2 and are respectively switched into an integrated circuit, and two output ends of the integrated circuit are respectively communicated with two outlet wire reeds; a sampling resistance R1 and R2 are respectively switched into different input ends and different output ends of the integrated circuit; one foot of a luminous tube is connected with one pin of a contact pin, and after communicated with a warning switch, an integrated circuit grounding radiating surface and a ground lug sequentially, another foot is connected with another pin of the contact pin; temperature controlling components tightly cling to the grounding radiating surface of an overvoltage and overcurrent integrated circuit. The warning switch consists of a warning sheet and a low temperature heat shrinkable sleeve sheathed at the top end of the warning sheet.

Description

All-electronin temperature control assembly breakaway-element integrated circuit Security Unit

Technical field

The utility model relates to the Security Unit in a kind of communication exchange device, especially the integrated circuit Security Unit on the telephone exchanger.

Background technology

Use more Security Unit to have two kinds at present in the communication exchange device: a kind of is the ground connection formula unit that adopts mechanical switch ground connection, the another kind of breakaway-element unit that adopts mechanical switch to disconnect.These two kinds of unit all adopt the mechanical switch mode, have the hidden danger of following several respects: the contact resistance of (1) mechanical switch can increase with the variation of environment, and so As time goes on contact resistance increases directly influences speech quality; (2) when the big electric current of generation exchanges touching disconnection protection, can produce the arcing phenomenon, the potential safety hazard very big (fire) to the security presence of machine room.

The utility model content

The purpose of this utility model is the deficiency that overcomes the above-mentioned background technology, and a kind of improvement of Security Unit is provided, and this Security Unit should have over-voltage and over-current automatically alarm and breaking protection automatically, eliminates disaster hidden-trouble, safe and reliable characteristics.

The technical scheme that the utility model provides is: all-electronin temperature control assembly breakaway-element integrated circuit Security Unit has a bar shaped shell; The top of shell has a pair of contact insert pin to stretch out forward, shell front end top and below be respectively equipped with a pair of outlet reed and a pair of inlet wire reed, a luminous tube is equipped with in the rear end of shell; Wiring board, integrated circuit, ground strip, temperature control assembly, alarm switch, sample resistance are housed respectively in the inner chamber of shell; Its line connecting relation is: two inlet wire reeds are connected K switch 1 and the K switch 2 in the temperature control assembly respectively, insert two inputs of integrated circuit then respectively, connect described two outlet reeds respectively by two outputs of integrated circuit again, other has sample resistance R1 and R2 to insert different inputs and different outputs at integrated circuit respectively; One pin of described luminous tube links to each other with wherein contact pin of contact insert pin, and another pin is connected successively after alarm switch, over-voltage and over-current integrated circuit ground connection radiating surface, the ground strip with another contact pin in the contact insert pin and linked to each other; In addition, the temperature control assembly is close on the ground connection radiating surface of over-voltage and over-current integrated circuit.

Described alarm switch comprises the alarm sheet and is sleeved on the low temperature heat-shrinkable T bush on alarm sheet top that the low temperature heat-shrinkable T bush rides on the ground connection radiating surface of over-voltage and over-current integrated circuit under the elastic acting force of alarm sheet.

Operation principle of the present utility model is: when being in normal operating conditions, user outline a and b are respectively successively by the K switch 1 in 2 inlet wire reeds 12, the temperature control assembly 6 and K2, sample resistance R1 and R2 arrival stored-program control exchange end of incoming cables a ' and b '.Because of low temperature heat-shrinkable T bush 7 has disconnected contacting of luminous tube and over-voltage and over-current integrated circuit 8 ground connection radiating surfaces, alarm switch K3 disconnects, and luminous tube 1 does not work.

When outside line overcurrent, overvoltage, overcurrent, overvoltage electric current enter over-voltage and over-current integrated circuit 8 by K switch 1 in inlet wire reed 12, the temperature control assembly and K2; Over-voltage and over-current integrated circuit 8 reacts discharge immediately, the heat that is produced passes to temperature control assembly 6 by over-voltage and over-current integrated circuit 8 ground connection radiating surfaces, temperature control assembly 6 its K switch 1 of action, K2 disconnect, and have cut off outside line, and programme-controlled exchange is protected because of no overcurrent, overvoltage; Meanwhile, be close to the low temperature heat-shrinkable T bush 7 on the ground connection radiating surface of over-voltage and over-current integrated circuit, by the heat melts of over-voltage and over-current integrated circuit 8 ground connection radiating surfaces generation, alarm sheet 5 contacts (also being alarm switch K3 closure) with over-voltage and over-current integrated circuit 8 ground connection radiating surfaces under self elastic force effect, by the alarm supply end, 13 1 contact pins of contact insert pin, a Copper Foil line in the wiring board 3, luminous tube 1 one pin, luminous tube 1 another pin, wiring board 3 another Copper Foil lines, alarm sheet 5, integrated circuit 8 ground connection radiating surfaces, ground strip 9 and contact insert pin 13 another contact pins form current circuit immediately, luminous tube 1 glittering outputting alarm signal.

The all-electronin temperature control assembly breakaway-element integrated circuit Security Unit that the utility model provides, owing to adopted 72 ℃ of temperature control assembly switches that just can disconnect outside line of rated temperature, no matter be that big electric current, high voltage pass through, can both in time cut off outer line current, guaranteed the safety of machine room in time, effectively; Simultaneously it can both the outputting alarm signal when being subjected to any extraneous electric current touching.And the contact resistance of temperature control assembly switch can not increase with the variation of environment, can not produce the arcing phenomenon when cutting off outer line current simultaneously, can avoid and eliminate the disaster hidden-trouble of machine room and cable fully, guarantees the safe and reliable of calculator room equipment.

Description of drawings

Fig. 1 is a main TV structure schematic diagram of the present utility model.

Fig. 2 is a plan structure schematic diagram of the present utility model.

Fig. 3 is a circuit theory schematic diagram of the present utility model.

Fig. 4 is the A portion enlarged diagram among Fig. 1.

Embodiment

As shown in the figure, all-electronin temperature control assembly breakaway-element integrated circuit Security Unit has a bar shaped shell 2; The top of shell has a pair of contact insert pin 13 to stretch out forward, the front end of shell top and below be respectively equipped with a pair of outlet reed 10 and a pair of inlet wire reed 12, a luminous tube 1 is equipped with in the rear end of shell; Above structure is identical with existing Security Unit.

The improvement that the utility model is done is that wiring board 3, integrated circuit 8, ground strip 9, temperature control assembly 6, alarm sheet 5, low temperature heat-shrinkable T bush 7, sample resistance R1 and R2 are housed respectively in the inner chamber at shell.

Concrete line connecting relation is: two inlet wire reeds 12 are connected K switch 1 and the K switch 2 in the temperature control assembly 6 respectively, insert two inputs of integrated circuit then respectively, connect described two outlet reeds 10 respectively by two outputs of integrated circuit again, other has two sample resistance R1 and R2 to be connected in parallel on the input and the output of integrated circuit respectively; One pin of described luminous tube links to each other (alarm supply end S) with wherein contact pin of contact insert pin, and another pin is connected successively after alarm sheet, low temperature heat-shrinkable T bush, over-voltage and over-current integrated circuit ground connection radiating surface (radiating surface with earth terminal by the conducting of IC interior electronic switch), the ground strip with another contact pin in the contact insert pin and linked to each other; In addition, the temperature control assembly is close on the ground connection radiating surface of over-voltage and over-current integrated circuit, and described low temperature heat-shrinkable T bush also is close on the ground connection radiating surface of over-voltage and over-current integrated circuit under the elastic acting force of alarm sheet simultaneously.

All components and parts in the utility model (except that alarm sheet 5) all outsourcing obtain.The over-voltage and over-current integrated circuit generally can adopt CLP200M.Among the alarm switch K3, alarm sheet 5 is the elastic sheet metal of a velamen bending just, and the one end is fixed in the circuit board, the other end put low temperature heat-shrinkable T bush 7 backs by self elastic force by on the ground connection radiating surface that is pressed in the over-voltage and over-current integrated circuit; Utilize the elastic force of sheet metal that low temperature heat-shrinkable T bush roof pressure is fixed, simultaneously the low temperature heat-shrinkable T bush makes again between the ground connection radiating surface of sheet metal and over-voltage and over-current integrated circuit and insulate.

Claims

1, all-electronin temperature control assembly breakaway-element integrated circuit Security Unit has a bar shaped shell (2); The top of shell has a pair of contact insert pin (13) to stretch out forward, shell front end top and below be respectively equipped with a pair of outlet reed (10) and a pair of inlet wire reed (12), a luminous tube (1) is equipped with in the rear end of shell; It is characterized in that in the inner chamber of shell wiring board 93 being housed respectively), integrated circuit (8), ground strip (9), temperature control assembly (6), alarm switch, sample resistance R1 and sample resistance R2; Its line connecting relation is: two inlet wire reeds (12) are connected switch (K1) and the switch (K2) in the temperature control assembly respectively, insert two inputs of integrated circuit then respectively, connect described two outlet reeds (10) respectively by two outputs of integrated circuit again, two sample resistances are connected in parallel on the input and the output of integrated circuit respectively; One pin of described luminous tube (1) links to each other with wherein contact pin of contact insert pin, and the another contact pin that another pin is connected in alarm switch, over-voltage and over-current integrated circuit ground connection radiating surface, ground strip (9) and the contact insert pin successively links to each other; In addition, temperature control assembly (6) is close on the ground connection radiating surface of over-voltage and over-current integrated circuit.

2, all-electronin temperature control assembly breakaway-element integrated circuit Security Unit according to claim 1, it is characterized in that described alarm switch comprises alarm sheet (5) and is sleeved on the low temperature heat-shrinkable T bush (7) of alarming the sheet top, the low temperature heat-shrinkable T bush rides on the ground connection radiating surface of over-voltage and over-current integrated circuit under the elastic acting force of alarm sheet.