CN203884081U - PCB anti-floating gland - Google Patents
PCB anti-floating gland Download PDFInfo
- Publication number
- CN203884081U CN203884081U CN201420107168.8U CN201420107168U CN203884081U CN 203884081 U CN203884081 U CN 203884081U CN 201420107168 U CN201420107168 U CN 201420107168U CN 203884081 U CN203884081 U CN 203884081U
- Authority
- CN
- China
- Prior art keywords
- pcb board
- upper cover
- comparator
- parts
- floating gland
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model provides a PCB anti-floating gland. The PCB anti-floating gland comprises an upper cover and a lower cover, wherein the upper cover comprises an upper cover body and PCB abutting parts, the PCB abutting parts are used for abutting and fixing elements on the PCB and comprise an outer cylinder, a baffle board, a spring, an abutting rod and a spring connection rod, the outer cylinder is a cylindrical structure and has a chamber used for accommodating the spring connection rod, the spring, the baffle board and a part of the abutting rod, one end of the spring connection rod is connected with the upper cover body through a connection portion, the other end of the spring connection rod is connected with one end of the spring close to the upper cover body, the other end of the spring far from the upper cover body is connected with the baffle board, one part of the abutting rod stretches into the outer cylinder and is connected with a lower bottom face of the baffle board, and periphery of the lower cover is respectively provided with a temperature alarming device. The PCB anti-floating gland can alarm when the PCB is overheated.
Description
Technical field
The utility model relates to a kind of clamping device, relates in particular to the anti-floating gland of a kind of pcb board.
Background technology
At present, the heat that produces when we use conventionally electronic device works, rises rapidly device interior temperature, if not in time by this dissipation of heat, equipment can be persistently overheating, device will be because of overheating failure, the reliability of electronic equipment will decline, and therefore, pcb board be carried out to radiating treatment very important.
Publication number is that one section of Chinese patent of 201993322U discloses a kind of pcb board fixture, and it comprises matrix, base and depression bar, and base is arranged on the bottom of matrix plane, and depression bar is arranged on the both sides of matrix plane.Matrix two bottom sides is respectively provided with a bayonet socket.Base cross section is " L " shape, is connected to form a groove with matrix.Base is provided with set bolt.One end of depression bar is rotatably connected with matrix by bearing pin, and the other end is connected with matrix by bayonet socket.
The pcb board fixture that above-mentioned patent provides can only fix circuit board by the both sides of clamping pcb board, cannot solve the problem of temperature alarm in circuit board making and test process.
Utility model content
The pcb board fixture that the utility model provides for prior art can only fix circuit board by the both sides of clamping pcb board, cannot solve the problem of temperature alarm in circuit board making and test process, provide a kind of pcb board anti-floating gland, the anti-floating gland of described pcb board comprises upper cover, lower cover, and the upper cover of the anti-floating gland of described pcb board comprises that upper cover main body, pcb board support parts;
Described pcb board supports parts for supporting and fix the components and parts on described pcb board; Described pcb board supports that parts comprise urceolus, baffle plate, spring, support bar, spring connecting rod;
Described urceolus is cylindrical and have a cavity and support bar for putting spring connecting rod, spring, baffle plate and part; Described spring connecting rod one end is connected with described upper cover main body by connecting portion, and the other end is connected with close described upper cover main body one end of described spring; Described spring is connected with described baffle plate away from one end of described upper cover main body; A described part that supports bar stretches into described urceolus and is connected with the bottom surface of described baffle plate;
Described lower cover surrounding arranges respectively a temperature alarming device, and described temperature alarming device comprises battery, stepup transformer, reducing transformer, Temperature Detector, comparator and alarm; Described battery is for powering to Temperature Detector, comparator, alarm;
Described stepup transformer is electrically connected to battery, comparator and alarm, is the first operating voltage, and exports comparator and alarm to for the output voltage of battery is raise;
Reducing transformer is electrically connected to battery, Temperature Detector and comparator, for the output voltage of battery is reduced to the second operating voltage, and outputs to Temperature Detector and comparator;
Described Temperature Detector comprises the first resistance and the thermistor that are once connected in series between reducing transformer and ground; Described comparator comprises voltage comparator and is connected serially to successively the second resistance and the 3rd resistance between described reducing transformer and ground, and the in-phase input end of described voltage comparator is electrically connected between described the second resistance and the 3rd resistance; Inverting input is electrically connected between described thermistor and the first resistance; Positive power source terminal is electrically connected to the output of described stepup transformer; Negative supply ground connection; The output of described voltage comparator is electrically connected to described alarm.
In the anti-floating gland of pcb board described in the utility model, described in support bar comprise for described pcb board on components and parts offset support end.
In the anti-floating gland of pcb board described in the utility model, the upper cover of the anti-floating gland of described pcb board comprises described in two or more that pcb board supports parts.
In the anti-floating gland of pcb board described in the utility model, described PCB supports parts and is matrix distribution in described upper cover main body.
In the anti-floating gland of pcb board described in the utility model, described upper cover, lower cover are rectangular or square.
In the anti-floating gland of pcb board described in the utility model, described in support end and comprise a groove, for the components and parts on accommodating described pcb board.
In the anti-floating gland of pcb board described in the utility model, described groove is hemisphere.
In the anti-floating gland of pcb board described in the utility model, described lower cover comprises for the groove of accommodating described pcb board and for connecting the snap part of described upper cover and described lower cover.
In the anti-floating gland of pcb board described in the utility model, described snap part is 4, and the relative both sides of wherein said lower cover surrounding arrange respectively 2 described snap parts.
The pcb board fixture that the utility model has overcome prior art to be provided can only fix circuit board by the both sides of clamping pcb board, cannot solve the defect of temperature alarm in circuit board making and test process, provide a kind of pcb board anti-floating gland, the anti-floating gland of this pcb board can be reported to the police when pcb board is overheated, has reduced the overheated risk that easily causes that pcb board damages in circuit board making and test process.
Brief description of the drawings
The pcb board that Fig. 1 provides for the utility model preferred embodiment is prevented the structural representation of the upper cover of floating gland;
Fig. 2 is the structural representation that in the anti-upper cover that floats gland of the pcb board shown in Fig. 1, pcb board supports parts;
Fig. 3 is the structural representation that the pcb board shown in Fig. 2 supports parts medi-spring;
Fig. 4 is that in Fig. 2, pcb board supports the structural representation that supports end in parts;
The anti-structural representation that floats gland of pcb board that Fig. 5 provides for the utility model preferred embodiment;
Fig. 6 is the circuit diagram of temperature alarming device in Fig. 5.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1, Fig. 2, Fig. 3, Fig. 4 and Fig. 5 show the anti-floating gland of a kind of pcb board that the utility model preferred embodiment provides, the anti-floating gland of described pcb board comprises upper cover, lower cover, and the upper cover of the anti-floating gland of described pcb board comprises that upper cover main body 1, pcb board support parts 2; Described upper cover and lower cover can fix described pcb board by closure, and closed mode comprises buckle mode, can certainly fix by other means described upper cover and lower cover, and the utility model is not limited in this.
Described pcb board supports parts 2 for supporting and fix the components and parts on described pcb board; Described pcb board supports parts 2 and comprises urceolus 21, baffle plate 22, spring 23, supports bar 24, spring connecting rod 25;
Described urceolus 21 is cylindrical and have a cavity and support bar 24 for putting spring connecting rod 25, spring 23, baffle plate 22 and part; Described spring connecting rod 25 one end are connected with described upper cover main body 1 by connecting portion 27, and the other end is connected with close described upper cover main body 1 one end of described spring 23; Described spring 23 is connected with described baffle plate 22 away from one end of described upper cover main body 1; A described part that supports bar 24 stretches into described urceolus 21 and is connected with the bottom surface of described baffle plate 22;
Described lower cover surrounding arranges respectively a temperature alarming device, and as shown in Figure 6, described temperature alarming device comprises battery, stepup transformer, reducing transformer, Temperature Detector, comparator and alarm; Described battery is for powering to Temperature Detector, comparator, alarm;
Stepup transformer 13, reducing transformer 14, Temperature Detector 15, comparator 16 and alarm 17.
Battery 11 is for powering to Temperature Detector 15, comparator 16 and alarm 17.
Stepup transformer 13 is electrically connected to battery 11, comparator 16 and alarm 17, and stepup transformer 13 is the first operating voltage V1 for the output voltage of battery 11 is raise, and exports comparator 16 and alarm 17 to.
Reducing transformer 14 is electrically connected to battery 11, Temperature Detector 15 and comparator 16, and reducing transformer 14 is for the output voltage of battery 11 being reduced to the second operating voltage V2, and exports Temperature Detector 15 and comparator 16 to.In the present embodiment, reducing transformer 14 is a low pressure difference linear voltage regulator (Low DropoutRegulator, LDO).
In the present embodiment, the output voltage of battery 11 is 3.7V, and the value of the first operating voltage V1 is 5V, and the value of the second operating voltage V2 is 2V.
Temperature Detector 15 is for detection of the variation of ambient temperature, and with the formal output of change in voltage to comparator 16.
Whether comparator 16, is electrically connected to Temperature Detector 15 and alarm 17, and comparator 16 is compared with a normal voltage for the voltage that Temperature Detector 15 is exported, and report to the police according to the corresponding control warning circuit 17 of comparative result.
Particularly, Temperature Detector 15 comprises the resistance R 1 and the thermistor R0 that are connected serially to successively between reducing transformer 14 and ground.Comparator 16 comprises voltage comparator U1, resistance R 2 and resistance R 3.Resistance R 2 and R3 are connected serially between reducing transformer 14 and ground successively.The in-phase input end of voltage comparator U1 is electrically connected to the node between resistance R 2 and resistance R 3; Inverting input is electrically connected to the node between thermistor R0 and resistance R 1; Positive power source terminal is electrically connected to the output of stepup transformer 13; Negative power end ground connection; Output is electrically connected to alarm 17.In the present embodiment, the type of alarm of alarm 17 is audible alarm.Alarm 17 comprises triode Q1, loud speaker BZ1 and sustained diode 1.The base stage of triode Q1 is electrically connected to the output of voltage comparator U1; Grounded emitter; Collector electrode is electrically connected to the output of stepup transformer 13 by loud speaker BZ1.The negative electrode of sustained diode 1 is electrically connected to the node between loud speaker BZ1 and stepup transformer 13; Anode is electrically connected to the node between loud speaker BZ1 and the collector electrode of triode Q1.
In the present embodiment, the thermistor that thermistor R0 is negative temperature coefficient, that is, the resistance of thermistor R0 reduces along with the rising of temperature.Under normal circumstances, the voltage of the inverting input of voltage comparator U1 is greater than the voltage of its in-phase input end, i.e. described normal voltage, now the output output low level (logical zero) of voltage comparator U1, triode Q1 cut-off, not sounding of loud speaker BZ1.And in the time that ambient temperature raises, the resistance of thermistor R0 reduces, the lower voltage of the inverting input of voltage comparator U1, if ambient temperature rises to the voltage that voltage that enough height make the inverting input of voltage comparator U1 is less than its in-phase input end, now voltage comparator U1 output high level drives triode Q1 conducting, makes loud speaker BZ1 sounding alarm.Sustained diode 1 is in the time that triode Q1 ends, and the self induction electromotive force that the induction coil (not shown) in loud speaker BZ1 is produced is carried out repid discharge, prevents that the induced current that described self-induction coil produces from causing damaging to triode Q1.
The pcb board fixture that pcb board that the utility model embodiment provides anti-floating gland has overcome prior art to be provided can only fix circuit board by the both sides of clamping pcb board, cannot solve the defect of temperature alarm in circuit board making and test process, provide a kind of pcb board anti-floating gland, the anti-floating gland of this pcb board can be reported to the police when pcb board is overheated, has reduced the overheated risk that easily causes that pcb board damages in circuit board making and test process.
Preferably, in the anti-floating gland of the pcb board described in the preferential embodiment of the utility model, described in support bar 24 comprise for described pcb board on components and parts offset support end 26.Described the supporting end supporting on bar 24 26 contact with the components and parts forming surface on described pcb board, supports bar 24 and supports residence and state the components and parts on pcb board, thereby fix and protect the components and parts on described pcb board by the elastic force of spring 23 described in making.
Preferably, in the anti-floating gland of the pcb board described in the preferential embodiment of the utility model, the upper cover of the anti-floating gland of described pcb board comprises described in two or more that pcb board supports parts 2.Components and parts that can be fixing as required arrange described pcb board and support the quantity of parts 2, can arrange with the pcb board of components and parts equal number and support parts 2; The pcb board fewer than components and parts also can be set and support parts 2.
Preferably, in the anti-floating gland of the pcb board described in the preferential embodiment of the utility model, described PCB supports parts 2 and is matrix distribution in described upper cover main body 1.The production that can facilitate the anti-floating gland of pcb board is so set.
Preferably, in the anti-floating gland of the pcb board described in the preferential embodiment of the utility model, described upper cover, lower cover are rectangular or square.
Preferably, in the anti-floating gland of the pcb board described in the preferential embodiment of the utility model, described in support end 26 and comprise a groove, for the components and parts on accommodating described pcb board.In general, the upper surface of the components and parts on described pcb board is all level, supports end 26 described in therefore the face that is level is set.But on described pcb board, may have some upper surfaces is not the components and parts of level, such as LED lamp lamp holder, may be circular arc, like this components and parts with described in support end 26 and be difficult for forming surface and contact, therefore at the described end 26 that supports, a groove is set, for a part for the components and parts on accommodating described pcb board, can better secure the above like this components and parts on pcb board.
Preferably, in the anti-floating gland of the pcb board described in the preferential embodiment of the utility model, described groove is hemisphere.Described groove is the components and parts of hemisphere on can better accommodating described pcb board, supports end 26 and contact with the surrounding of described components and parts more and fit described in making.
Preferably, in the anti-floating gland of the pcb board described in the preferential embodiment of the utility model, described lower cover comprises for the groove of accommodating described pcb board and for connecting the snap part 3 of described upper cover and described lower cover.Can fix described upper cover and described lower cover by described snap part 3.
Preferably, in the anti-floating gland of the pcb board described in the preferential embodiment of the utility model, described snap part 3 is 4, and the relative both sides of wherein said lower cover surrounding arrange respectively 2 described snap parts 3.By on the relative both sides of described lower cover surrounding, 2 described snap parts 3 being set respectively, can fix better described upper cover and described lower cover.Can certainly snap part 3 be set respectively in described lower cover surrounding, the utility model does not limit the quantity of described snap part 3.
When use, pcb board is positioned in the groove of described lower cover, by described support bar 24 end 26, and the elastic force providing by described spring 23 is provided, fix the components and parts on described pcb board, finally fix described upper cover and described lower cover by described snap part 3.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improvement and conversion all should belong to the protection range of the utility model claims.
Claims (9)
1. the anti-floating gland of pcb board, the anti-floating gland of described pcb board comprises upper cover, lower cover, it is characterized in that, the upper cover of the anti-floating gland of described pcb board comprises that upper cover main body, pcb board support parts;
Described pcb board supports parts for supporting and fix the components and parts on described pcb board; Described pcb board supports that parts comprise urceolus, baffle plate, spring, support bar, spring connecting rod;
Described urceolus is cylindrical and have a cavity and support bar for putting spring connecting rod, spring, baffle plate and part; Described spring connecting rod one end is connected with described upper cover main body by connecting portion, and the other end is connected with close described upper cover main body one end of described spring; Described spring is connected with described baffle plate away from one end of described upper cover main body; A described part that supports bar stretches into described urceolus and is connected with the bottom surface of described baffle plate;
Described lower cover surrounding arranges respectively a temperature alarming device, and described temperature alarming device comprises battery, stepup transformer, low pressure difference linear voltage regulator, Temperature Detector, comparator and alarm; Described battery is for powering to Temperature Detector, comparator, alarm;
Described stepup transformer is electrically connected to battery, comparator and alarm, is the first operating voltage, and exports comparator and alarm to for the output voltage of battery is raise;
Reducing transformer is electrically connected to battery, Temperature Detector and comparator, for the output voltage of battery is reduced to the second operating voltage, and outputs to Temperature Detector and comparator;
Described Temperature Detector comprises the first resistance and the thermistor that are once connected in series between reducing transformer and ground; Described comparator comprises voltage comparator and is connected serially to successively the second resistance and the 3rd resistance between described reducing transformer and ground, and the in-phase input end of described voltage comparator is electrically connected between described the second resistance and the 3rd resistance; Inverting input is electrically connected between described thermistor and the first resistance; Positive power source terminal is electrically connected to the output of described stepup transformer; Negative supply ground connection; The output of described voltage comparator is electrically connected to described alarm.
2. the anti-floating gland of pcb board according to claim 1, is characterized in that, described in support bar comprise for described pcb board on components and parts offset support end.
3. the anti-floating gland of pcb board according to claim 2, is characterized in that, the upper cover of the anti-floating gland of described pcb board comprises described in two or more that pcb board supports parts.
4. the anti-floating gland of pcb board according to claim 3, is characterized in that, described PCB supports parts and is matrix distribution in described upper cover main body.
5. the anti-floating gland of pcb board according to claim 4, is characterized in that, described upper cover, lower cover are rectangular or square.
6. the anti-floating gland of pcb board according to claim 4, is characterized in that, described in support end and comprise a groove, for the components and parts on accommodating described pcb board.
7. the anti-floating gland of pcb board according to claim 6, is characterized in that, described groove is hemisphere.
8. the anti-floating gland of pcb board according to claim 7, is characterized in that, described lower cover comprises for the groove of accommodating described pcb board and for connecting the snap part of described upper cover and described lower cover.
9. the anti-floating gland of pcb board according to claim 8, is characterized in that, described snap part is 4, and the relative both sides of wherein said lower cover surrounding arrange respectively 2 described snap parts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420107168.8U CN203884081U (en) | 2014-03-11 | 2014-03-11 | PCB anti-floating gland |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420107168.8U CN203884081U (en) | 2014-03-11 | 2014-03-11 | PCB anti-floating gland |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203884081U true CN203884081U (en) | 2014-10-15 |
Family
ID=51684538
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420107168.8U Expired - Fee Related CN203884081U (en) | 2014-03-11 | 2014-03-11 | PCB anti-floating gland |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203884081U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105893881A (en) * | 2016-05-04 | 2016-08-24 | 浪潮电子信息产业股份有限公司 | Method for preventing interface card of server from being burnt |
-
2014
- 2014-03-11 CN CN201420107168.8U patent/CN203884081U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105893881A (en) * | 2016-05-04 | 2016-08-24 | 浪潮电子信息产业股份有限公司 | Method for preventing interface card of server from being burnt |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TWI535161B (en) | Alternating current voltage detection circuit | |
| EP3343238B1 (en) | Short-circuit prevention detection device and user terminal | |
| CN102832818B (en) | Constant-voltage power circuit based on single chip processor and constant-voltage power supply device | |
| CN203884081U (en) | PCB anti-floating gland | |
| CN201196662Y (en) | Voice flashing creepage alarm device | |
| CN104466897B (en) | A kind of overvoltage crowbar and lamps and lanterns | |
| CN103512671A (en) | Over-temperature alarming circuit and fan device equipped with the same | |
| CN204719122U (en) | A kind of voltage detecting warning circuit | |
| CN207321106U (en) | A kind of filter circuit for large scale industry ceiling fan controller | |
| CN204031561U (en) | The anti-rush of current circuit of LED lamp | |
| US8988234B2 (en) | Alarm system | |
| CN104409677A (en) | Device suitable for electrical connection of button cell and connection method | |
| CN205579954U (en) | Electric water heater magnesium stick consumes warning device | |
| CN205080676U (en) | Electronic circuit high pressure warning protection circuit | |
| CN203404741U (en) | Lamp holder used for ship signal lamp | |
| CN105372604B (en) | A kind of LED car lamp test circuit with overheat protector instruction | |
| CN204857175U (en) | Active electromagnetic buzzer | |
| CN204964607U (en) | Outage warning circuit based on photo resistance | |
| CN205539164U (en) | Detect electrophoresis apparatus electric leakage device | |
| CN111537781A (en) | Control circuit of electric detector | |
| CN203574986U (en) | Circular circuit board fixing part of camera | |
| CN208767780U (en) | The remaining electricity of high-voltage capacitance power-off eliminates circuit | |
| CN217181193U (en) | Magnetic inductor | |
| CN211603322U (en) | Novel electroscope | |
| CN202678221U (en) | Automobile power supply delayer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141015 Termination date: 20180311 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |