CN204578125U - The high temperature protection device of power frequency charger inside - Google Patents

The high temperature protection device of power frequency charger inside Download PDF

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Publication number
CN204578125U
CN204578125U CN201520116155.1U CN201520116155U CN204578125U CN 204578125 U CN204578125 U CN 204578125U CN 201520116155 U CN201520116155 U CN 201520116155U CN 204578125 U CN204578125 U CN 204578125U
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CN
China
Prior art keywords
power frequency
temperature
frequency charger
thermal switch
charger
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
Application number
CN201520116155.1U
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Chinese (zh)
Inventor
严为人
管文明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhangjiagang Huawei Electronics Co Ltd
Original Assignee
Zhangjiagang Huawei Electronics Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Zhangjiagang Huawei Electronics Co Ltd filed Critical Zhangjiagang Huawei Electronics Co Ltd
Priority to CN201520116155.1U priority Critical patent/CN204578125U/en
Application granted granted Critical
Publication of CN204578125U publication Critical patent/CN204578125U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of high temperature protection device of power frequency charger inside, in power frequency charger, need the device surface set temperature inductive switch respectively of thermometric; Each thermal switch is accessed respectively I corresponding on single-chip microcomputer in power frequency charger 0in the circuits for triggering of end, described circuits for triggering comprise two divider resistances be mutually connected in series, and two divider resistances be connected in series are connected to the I on single-chip microcomputer 0between port and positive source; A pin ground connection of thermal switch, another pin of thermal switch is connected between the divider resistance of two serial connections; When charger internal operating temperature is too high, monolithic function makes the break-off of power frequency charger, show the failure code of this high-temperature device on a display screen simultaneously, be convenient to carry out in time overhauling and processing, thus avoid causing larger potential safety hazard, and then the long-term safety of energy effective guarantee power frequency charger is used.

Description

The high temperature protection device of power frequency charger inside
Technical field
The utility model relates to power frequency charger, particularly relates to resist technology field during power frequency charger internal high temperature.
Background technology
Power frequency charger is usually used as the charger of the equipment such as electri forklift, because the power output of the equipment such as electri forklift is larger, under the prerequisite meeting charger overall dimension, the working temperature of the relevant components and parts in charger inside considered by needs, too high premature aging or the damage easily causing components and parts of the working temperature of components and parts.Utilize the single-chip microcomputer in power frequency charger, develop the protective device when the inner related device high temperature of power frequency charger, the long-term safety of energy effective guarantee power frequency charger is used.
Utility model content
The purpose of this utility model is: the high temperature protection device providing a kind of power frequency charger inside.
For achieving the above object, the utility model have employed following technical scheme.
The high temperature protection device of power frequency charger inside, is characterized in: the device surface set temperature inductive switch respectively needing thermometric in power frequency charger, each thermal switch accesses I corresponding on single-chip microcomputer in power frequency charger respectively 0in the circuits for triggering of port; The structure of described circuits for triggering is: two divider resistances be mutually connected in series, and two divider resistances be connected in series are connected to the I on single-chip microcomputer 0between port and positive source; A pin ground connection of thermal switch, another pin of thermal switch is connected between the divider resistance of two serial connections; When the surface temperature of each device is normal, thermal switch is failure to actuate, now corresponding I on single-chip microcomputer 0port connects high level, and power frequency charger normally works; When the surface temperature of certain device is too high, be arranged on the rapid action of thermal switch of this device surface, closing contact, makes the I be connected with this thermal switch 0port ground connection and be low level, single-chip microcomputer makes the break-off of power frequency charger according to this low level triggering signal, simultaneously in the failure code of this high-temperature device of power frequency charger display screen display, operator judges according to this failure code the device that temperature is too high and carries out in time overhauling and processing.
Further, aforesaid high temperature protection device, wherein: described thermal switch is bimetallic temperature inductive switch.
The beneficial effects of the utility model are: in power frequency charger, adopt high temperature protection device described in the utility model; when charger internal operating temperature is too high or cause temperature too high because of device fault; monolithic function makes the break-off of power frequency charger; simultaneously in the failure code of this high-temperature device of power frequency charger display screen display; convenient operation workman judges which device temperature is too high and carries out in time overhauling and processing; thus avoid causing larger potential safety hazard, and then the long-term safety of energy effective guarantee power frequency charger is used.
Accompanying drawing explanation
Fig. 1 is the structural principle schematic diagram of the high temperature protection device of power frequency charger inside described in the utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is further described.
As shown in Figure 1; the high temperature protection device of power frequency charger inside described in the utility model; its structure is: the device surface set temperature inductive switch respectively needing thermometric in power frequency charger; shown in Figure 1; six temperature sense beginnings are exemplarily indicated in Fig. 1; that is: thermal switch J1, J2, J3, J4, J5 and J6, described thermal switch all adopts bimetallic temperature inductive switch.Each thermal switch accesses I corresponding on single-chip microcomputer U1 in power frequency charger respectively 0in the circuits for triggering of port.In the present embodiment, because the structure of each thermal switch and coupled circuits for triggering is all identical, describing for simplifying, being illustrated for thermal switch J1 and coupled circuits for triggering below, repeating no more other thermal switch and coupled circuits for triggering.The structure of the circuits for triggering be connected with thermal switch J1 is: two divider resistance R1 and R2 be mutually connected in series, and two divider resistance R1 and R2 be connected in series are connected to an I on single-chip microcomputer U1 0between port and positive source; A pin ground connection of thermal switch J1, another pin of thermal switch J1 is connected between divider resistance R1 and R2 of two serial connections; When the surface temperature of the device being provided with thermal switch J1 is normal, thermal switch J1 is failure to actuate, now corresponding I on single-chip microcomputer U1 0port connects high level, and power frequency charger normally works; When the surface temperature of the device being provided with thermal switch J1 is too high, be arranged on the rapid action of thermal switch J1 of this device surface, closing contact, make the I be connected with this thermal switch J1 0port ground connection and be low level, single-chip microcomputer U1 makes the break-off of power frequency charger according to this low level triggering signal, simultaneously in the failure code of this high-temperature device of power frequency charger display screen display, operator judges according to this failure code the device that temperature is too high and carries out in time overhauling and processing.
The beneficial effects of the utility model are: in power frequency charger, adopt high temperature protection device described in the utility model; when charger internal operating temperature is too high or cause temperature too high because of device fault; monolithic function makes the break-off of power frequency charger; simultaneously in the failure code of this high-temperature device of power frequency charger display screen display; convenient operation workman judges which device temperature is too high and carries out in time overhauling and processing; thus avoid causing larger potential safety hazard, and then the long-term safety of energy effective guarantee power frequency charger is used.

Claims (2)

1. the high temperature protection device of power frequency charger inside, is characterized in that: the device surface set temperature inductive switch respectively needing thermometric in power frequency charger, each thermal switch accesses I corresponding on single-chip microcomputer in power frequency charger respectively 0in the circuits for triggering of port; The structure of described circuits for triggering is: two divider resistances be mutually connected in series, and two divider resistances be connected in series are connected to the I on single-chip microcomputer 0between port and positive source; A pin ground connection of thermal switch, another pin of thermal switch is connected between the divider resistance of two serial connections; When the surface temperature of each device is normal, thermal switch is failure to actuate, now corresponding I on single-chip microcomputer 0port connects high level, and power frequency charger normally works; When the surface temperature of certain device is too high, be arranged on the rapid action of thermal switch of this device surface, closing contact, makes the I be connected with this thermal switch 0port ground connection and be low level, single-chip microcomputer makes the break-off of power frequency charger according to this low level triggering signal, simultaneously in the failure code of this high-temperature device of power frequency charger display screen display, operator judges according to this failure code the device that temperature is too high and carries out in time overhauling and processing.
2. high temperature protection device according to claim 1, is characterized in that: described thermal switch is bimetallic temperature inductive switch.
CN201520116155.1U 2015-02-26 2015-02-26 The high temperature protection device of power frequency charger inside Expired - Fee Related CN204578125U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520116155.1U CN204578125U (en) 2015-02-26 2015-02-26 The high temperature protection device of power frequency charger inside

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520116155.1U CN204578125U (en) 2015-02-26 2015-02-26 The high temperature protection device of power frequency charger inside

Publications (1)

Publication Number Publication Date
CN204578125U true CN204578125U (en) 2015-08-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520116155.1U Expired - Fee Related CN204578125U (en) 2015-02-26 2015-02-26 The high temperature protection device of power frequency charger inside

Country Status (1)

Country Link
CN (1) CN204578125U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104734284A (en) * 2015-02-26 2015-06-24 张家港市华为电子有限公司 Power-frequency charging machine internal high-temperature protection method and protection device using same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104734284A (en) * 2015-02-26 2015-06-24 张家港市华为电子有限公司 Power-frequency charging machine internal high-temperature protection method and protection device using same

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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
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150819

Termination date: 20180226