CN208207113U - A kind of detection of electrical leakage structure for high power device radiator - Google Patents
A kind of detection of electrical leakage structure for high power device radiator Download PDFInfo
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- CN208207113U CN208207113U CN201820686278.2U CN201820686278U CN208207113U CN 208207113 U CN208207113 U CN 208207113U CN 201820686278 U CN201820686278 U CN 201820686278U CN 208207113 U CN208207113 U CN 208207113U
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- radiator
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- power device
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Abstract
The utility model discloses a kind of detection of electrical leakage structure for high power device radiator, including fixed bracket, radiator, pcb board, insulation spacer, connector, the fixed bracket setting is connect between the pcb board and the radiator, and with the pcb board, the radiator；High power device is set in the fixed bracket, the insulation spacer is set between the high power device and the radiator；The connector connects the fixed bracket, the pcb board and the radiator；Test suite is arranged in the pcb board, and the test suite is connected with the baffle, and the baffle and the connector connect, and detection module can be connected with the test suite；The utility model detects the test suite by the detection module to test whether radiator charges, and is applicable in pile line operation, improving production efficiency；Before factory, discovery insulation spacer, bracket electric leakage avoid flowing into finished product, cause human injury's accident controller.
Description
Technical field
The utility model relates to detection of air-conditioning fields, and in particular to a kind of detection of electrical leakage for high power device radiator
Structure.
Background technique
In the prior art, the high power device of air-conditioning frequency conversion machine controller, as rectifier bridge, IGBT, fast recovery diode,
IPM etc. requires installation radiator using blower blowing heat dissipation.But when using radiator heat-dissipation, due to most of power devices
Part surface is Metal Packaging, and with device inside circuit connection, and the package metals current potential of different capacity device is not in circuit
Together；Radiator and fixed bracket are contacted with high power device, are easily made radiator or fixed bracket electric leakage, are caused power device or control
Other components of device processed are burnt out.
And in existing controller factory testing, it convenient can not effectively detect whether radiator or fixed bracket have
There is electric leakage hidden danger, easily cause the accidental damage of air-conditioning frequency conversion machine controller in use, generate economic loss or threatens people
Body safety.
Utility model content
In view of this, the utility model is directed to a kind of detection of electrical leakage structure for high power device radiator, with
It solves to be difficult to the radiator detected or fixed bracket electrical leakage problems before controller factory in the prior art.
In order to achieve the above objectives, the technical solution of the utility model is achieved in that
A kind of detection of electrical leakage structure for high power device radiator, including fixed bracket, radiator, pcb board, insulation
Gasket, connector, the fixed bracket are arranged between the pcb board and the radiator, and with the pcb board, described dissipate
Hot device connection；High power device is set in the fixed bracket, between the high power device and the radiator described in setting
Insulation spacer；The connector connects the fixed bracket, the pcb board and the radiator；Test group is arranged in the pcb board
Part, the test suite are connected with the baffle, and the baffle and the connector connect, detection module can with it is described
Test suite connects.
Preferably, the test suite includes the first test point, the connector includes first connecting portion, the fixed branch
First through hole is arranged in frame, and the second through-hole is arranged in the pcb board, and the first through hole and second through-hole are correspondingly arranged；It is described
First connecting portion sequentially passes through the first through hole and second through-hole, and connect with the radiator.
Preferably, the first connecting portion is set as the cylindric connecting rod that one end is provided with locating piece, the connecting rod
External screw thread is arranged in end far from the locating piece, and the radiator is provided with the first connecting hole of internal screw thread, the outer spiral shell
The detachable connection to realize the first connecting portion and the radiator is arranged in line and the screw-internal thread fit.
Preferably, the diameter dimension of the first through hole is greater than the connecting rod diameter dimension and is less than the locating piece cross
Sectional dimension；The second through-hole diameter size is identical with the connecting rod diameter dimension.
Preferably, the test suite further includes the second test point, the connector further includes second connecting portion, described
Insulating layer is arranged in first through hole, and the insulating layer is arranged between the first connecting portion and the fixed bracket.
Preferably, third through-hole is arranged in the pcb board, (length dimension is greater than described second and connects the first connecting portion
The length dimension of socket part；The second connecting portion passes through the third through-hole and connect with the fixed bracket.
Preferably, the insulation spacer is arranged between the fixed bracket and the radiator.
Preferably, prompt component is connect with the detection module, the prompt component includes buzzer and/or warning light.
Preferably, the baffle is set as dew copper copper foil, the connector is set as screw
Preferably, the detection module is set as ICT chunking.
For the prior art, the detection of electrical leakage structure described in the utility model for high power device radiator has following
Advantage:
The utility model detects the test suite by the detection module to test whether radiator charges, and is applicable in stream
Waterline operation, improving production efficiency；Before factory, discovery insulation spacer, bracket electric leakage are avoided flowing into finished product, be caused controller
Human injury's accident；It also avoids product to sell away damage of product simultaneously, increases maintenance cost.
Detailed description of the invention
Fig. 1 is the Structure explosion diagram for being used for high power device radiator detection of electrical leakage structure；
Fig. 2 is the vertical view connection figure of the test suite；
Fig. 3 is the structure chart for being used for high power device radiator detection of electrical leakage constructive embodiment two；
Fig. 4 is the structure chart for being used for high power device radiator detection of electrical leakage constructive embodiment three；
Fig. 5 is the structure chart for being used for high power device radiator detection of electrical leakage constructive embodiment four.
Digital representation in figure:
1- high power device；2- fixes bracket；3-- radiator；4-PCB plate；5- insulation spacer；6- baffle；7- detects mould
Block；8- test suite；9- connector；21- first through hole；22- insulating layer；The second connecting hole of 23-；The second through-hole of 41-；42-
Three through-holes；The first connecting hole of 31-；71- prompts component；The first test point of 81-；The second test point of 82-；91- first connecting portion；
92- second connecting portion；911- locating piece；912- connecting rod.
Specific embodiment
It should be noted that in the absence of conflict, the feature in the embodiments of the present invention and embodiment can
To be combined with each other.
In addition, the directionality instruction being previously mentioned in the embodiments of the present invention, then directionality instruction are only used for solving
It releases in relative positional relationship, the motion conditions etc. under a certain particular pose (as shown in the picture) between each component, if this is specific
When posture changes, then directionality instruction also correspondingly changes correspondingly.
The utility model will be described in detail below with reference to the accompanying drawings and embodiments.
Embodiment one
Fig. 1 shows a kind of Structure explosion diagram for high power device radiator detection of electrical leakage structure, for the ease of saying
It is bright to illustrate only part relevant to the utility model embodiment.
It is described to include fixed bracket 2, radiator 3, pcb board 4, insulation for high power device radiator detection of electrical leakage structure
Gasket 5, connector 9.The fixed bracket 2 is arranged between the pcb board 4 and the radiator 3, and with the pcb board 4,
The radiator 3 connects；High power device 1, and the high power device 1 and the radiator 3 are set in the fixed bracket 2
Between the insulation spacer 5 is set；The connector 9 connects the fixed bracket 2, the pcb board 4 and the radiator 3.
The high power device 1 is fixed on the radiator 3 by the fixed bracket 2, to realize to described big
The fixation of 1 position of power device guarantees that 1 radiating surface of high power device is contour, and the radiating surface be adequately exposed to it is described
On radiator 3, the heat dissipation effect of the high power device 1 is improved.
By the insulation spacer 5 to the buffer action between the high power device 1 and the radiator 3, institute is avoided
The radiator 3 charges caused by stating the directly contact of high power device 1 and the radiator 3；Due to different capacity in circuit
The current potential of device is different, generates potential difference between the electrification radiator 3 caused by leaking electricity, easily causes the high power device 1
Damage；And electric leakage the radiator 3 contacted by user after easily threaten personal safety.
Baffle 6 is arranged on 4 surface of pcb board in the connector 9, and the baffle 6 avoids the connector 9 and described
The direct contact on 4 surface of pcb board reduces the accidental damage of the pcb board 4 when installation.The connector 9 and the baffle 6 are equal
It is made of conductive metal material, the baffle 6 is preferably arranged to dew copper copper foil, and the connector 9 is preferably arranged to spiral shell
Nail.
As shown in Fig. 2, Fig. 2 is the vertical view connection figure of the test suite；Test suite 8 is arranged in the pcb board 4, described
The electrical connection between the test suite 8 and the baffle 6 is realized in test suite 8 and the connection of the baffle 6.Pass through detection module
7 with the contact of the test suite 8, to detect the current potential on the test suite 8, it can be achieved that the radiator 3 or described
The detection of fixed 2 drain conditions of bracket.The detection module 7 is preferably arranged to ICT chunking (automatic on-line tester).
The current potential on the test suite 8 is detected by the detection module 7, can directly detect the insulation spacer 5
Whether damaged, if damaged, the radiator 3 is charged, since the radiator 3 passes through the connector 9 and the baffle 6 and institute
It states test suite 8 to be directly connected to, i.e., the described radiator 3 and the test suite 8 are conductive, the test suite 8 and the heat dissipation
Device 3 has same current potential, therefore can realize the detection to 5 breakage of insulation spacer.
Further, when the insulation performance of the fixed bracket 2 is bad, on the pcb board 4 with the fixed bracket 2
It can be powered between the different copper foils of connection；The radiator 3 is electrically connected with the high power device 1 by the fixed bracket 2,
The radiator 3 is caused to charge；Detect the current potential on the test suite 8 by the ICT chunking, can direct monitoring go out it is described
The quality of the insulation performance of fixed bracket 2 avoids the electric leakage of fixed bracket 2 from causing the hollow modulation frequency machine controller of use process
Damage.
Prompt component 71 connect with the detection module 7, when the detection module 7 detects the test suite 8 and greatly
When there is potential difference on ground, the prompt component 71 enters prompt state to remind user, and the prompt state includes light flash
Or other reasonable prompting modes such as buzzer warning, become with guaranteeing that user can clearly tell the air-conditioning with electrical leakage problems
Frequency machine controller.
Embodiment two
As shown in figure 3, Fig. 3 is the structure chart for being used for high power device radiator detection of electrical leakage structure described in the present embodiment；
The test suite 8 includes the first test point 81, and the connector 9 includes first connecting portion 91, fixed bracket 2 setting the
The second through-hole 41 is arranged in one through-hole 21, the pcb board 4, and the first through hole 21 and second through-hole 41 are correspondingly arranged.It is described
First connecting portion 91 sequentially passes through the first through hole 21 and second through-hole 41, and connect with the radiator 3.
Preferably, external screw thread is arranged in one end of the connector 9, the radiator 3 is provided with the first company of internal screw thread
Hole 31 is connect, first connecting hole 31 and 9 end of the connector are equipped with, and pass through the external screw thread and the internal screw thread
The detachable connection for realizing the connector 9 and the radiator 3 is set.
First test point 81 and the first connecting portion 91 are connected by the baffle 6, the first connecting portion 91
It is preferably arranged to screw, i.e. one end cylindric connecting rod 912 for being provided with locating piece 911, the connecting rod 912 is far from described fixed
The end of position block 911 is provided with the external screw thread.The diameter dimension of the first through hole 21 is greater than the 912 diameter ruler of connecting rod
It is very little and be less than 911 cross sectional dimensions of locating piece, avoid the direct contact of the first connecting portion 91 and the pcb board 4；Institute
It is identical with 912 diameter dimension of connecting rod to state 41 diameter dimension of the second through-hole, guarantees the first connecting portion 91 and described solid
In the close contact of 41 position of the second through-hole between fixed rack 2.
The first connecting portion 91 is by rotation threaded adjustment position and eventually by the locating piece 911 and the PCB
Contact connectio between 4 surface of plate realizes that the position of the first connecting portion 91 and the pcb board 4 is fixed；The locating piece 911
It is connected with the baffle 6, realizes the connection of the first connecting portion 91 and first test point 81.
The radiator 3 is caused to charge when the insulation performance of the damaged or described fixed bracket 2 of the insulation spacer 5 is bad
When, since the radiator 3 is connected by the first connecting portion 91 and the baffle 6 and the direct of first test point 81
It connects, i.e., the conductive connection of described radiator 3 and first test point 81, the first test point 81 of the survey and the radiator 3
With same current potential；Detect the potential difference between first test point 81 and the earth by the detection module 7, it can be achieved that
Detection to the insulation spacer 5 damaged state and 2 leakage condition of fixed bracket.
The pcb board 4, the fixed bracket 2, the radiator 3 are connected by the first connecting portion 91, Jin Erti
The high pcb board 4, the fixed bracket 2, between the radiator 3 connection status stability.
Embodiment three
As shown in figure 4, Fig. 4 is the structure chart for being used for high power device radiator detection of electrical leakage structure described in the present embodiment；
Embodiment three is further improved on the basis of example 2, thes improvement is that, the test suite 8 further includes second
Test point 82, the connector 9 further include second connecting portion 92, and insulating layer 22, the insulation is arranged in the first through hole 21
Layer 22 is arranged between the first connecting portion 91 and the fixed bracket 2, guarantees the first connecting portion 91 and the fixation
State of insulation between bracket 2.
Third through-hole 42 is arranged in the pcb board 4, and the second connecting portion 92 is similar to 91 structure of first connecting portion,
I.e. both ends are respectively arranged with the locating piece 911 and the externally threaded cylindric connecting rod 912, and first connection
The length dimension in portion 91 is greater than the length dimension of the second connecting portion 92.The diameter dimension of the third through-hole 42 is greater than described
912 diameter dimension of connecting rod and be less than 911 cross sectional dimensions of locating piece, avoid the second connecting portion 92 and the PCB
The direct contact of plate 4；The fixed bracket 2 is provided with the second connecting hole 23 of internal screw thread, and the second connecting portion 92 passes through
The third through-hole 42 is simultaneously connect by second connecting hole 23 with the fixed bracket 2, and the second connecting portion 92 passes through
The external screw thread and second connecting hole 23 are threadedly coupled.
Second test point 82 is connected by the baffle 6 and the second connecting portion 92, due to second connection
The threaded connection in portion 92 and second connecting hole 23, the second connecting portion 92 and the fixed bracket 2 closely connect.
The contact of first test point 81 with second test point 82 is detected respectively by the detection module 7,
Two kinds of bad drain conditions of damaged or described 2 insulation performance of fixed bracket of the insulation spacer 5 can be judged respectively.
Detected between first test point 81 and the earth by the detection module 7, second test point 82 with
There is potential difference between the earth, and when two potential difference numerical value are identical, can determine whether that the fixed bracket 2 is in electric leakage shape
State；When between second test point 82 and the earth without potential difference, when having potential difference between first test point 81 and the earth,
It can determine whether that the insulation spacer 5 is in damaged state.
The first connecting portion 91 and the second connecting portion 92 can relative to 3 center line symmetrical setting of radiator,
Improve the pcb board 4, the fixed bracket 2, between the radiator 3 connection status stability.
Example IV
As shown in figure 5, Fig. 5 is the structure chart for being used for high power device radiator detection of electrical leakage structure described in the present embodiment；
Example IV is further improved on the basis of embodiment three, thes improvement is that, the insulation spacer 5 is arranged described
Between fixed bracket 2 and the radiator 3, when avoiding 2 insulation performance of fixed bracket bad, the radiator 3 passes through institute
Stating fixed bracket 2 and being connected to the high power device 1 causes the radiator 3 to charge.
It is detected by the detection module 7 when having potential difference between first test point 81 and the earth, can determine whether institute
It states insulation spacer 5 and is in damaged state；When having potential difference between second test point 82 and the earth, the fixed branch can determine whether
2 insulation performance of frame is bad.
The configuration settings of the present embodiment can be accurately judged to damaged or described 2 insulating properties of fixed bracket of the insulation spacer 5
Two kinds of bad drain conditions of energy, tester can replace in time the insulation spacer 5 or the fixation according to the drain conditions
Bracket 2 is so that the air-conditioning frequency conversion machine controller can be used safely.
Embodiment five
Preferably, the detection module 7 is contacted by detection probe with the test suite 8, to detect the radiator 3
Drain conditions；The detection probe may be configured as metal clips, i.e., the described metal clips has certain screen resilience, the gold
Belong to elastic slice and the test suite 8 is in close contact under the action of the screen resilience, to guarantee the detection module 7 and the survey
The contact condition between component 8 is tried, to improve the accuracy of 7 testing result of detection module.
The above is only the preferred embodiment of the present invention, is merely illustrative for the utility model, and
It is unrestricted.Those skilled in the art understand that can be to it in the spirit and scope defined by the utility model claims
Many changes, modifications, and even equivalents are carried out, but all will fall within the protection scope of the utility model.
Claims (10)
1. a kind of detection of electrical leakage structure for high power device radiator, which is characterized in that including fixed bracket (2), heat dissipation
Device (3), pcb board (4), insulation spacer (5), connector (9), fixed bracket (2) setting is in the pcb board (4) and described
Between radiator (3), and it is connect with the pcb board (4), the radiator (3)；Setting is high-power in the fixed bracket (2)
The insulation spacer (5) are arranged in device (1) between the high power device (1) and the radiator (3)；The connector (9)
Connect the fixed bracket (2), the pcb board (4) and the radiator (3)；Test suite (8) are arranged in the pcb board (4),
The test suite (8) and baffle (6) connection, and the baffle (6) and the connector (9) connect, detection module (7)
It can be connected with the test suite (8).
2. being used for the detection of electrical leakage structure of high power device radiator as described in claim 1, which is characterized in that the test
Component (8) includes the first test point (81), and the connector (9) includes first connecting portion (91), fixed bracket (2) setting
The second through-hole (41) are arranged in first through hole (21), the pcb board (4), the first through hole (21) and second through-hole (41)
It is correspondingly arranged；The first connecting portion (91) sequentially passes through the first through hole (21) and second through-hole (41), and with institute
State radiator (3) connection.
3. being used for the detection of electrical leakage structure of high power device radiator as claimed in claim 2, which is characterized in that described first
Interconnecting piece (91) is set as the cylindric connecting rod (912) that one end is provided with locating piece (911), and the connecting rod (912) is separate
External screw thread is arranged in the end of the locating piece (911), and the radiator (3) is provided with the first connecting hole (31) of internal screw thread,
The external screw thread and screw-internal thread fit setting are to realize the detachable of the first connecting portion (91) and the radiator (3)
Formula connection.
4. being used for the detection of electrical leakage structure of high power device radiator as claimed in claim 3, which is characterized in that described first
The diameter dimension of through-hole (21) is greater than the connecting rod (912) diameter dimension and is less than the locating piece (911) cross sectional dimensions；
Second through-hole (41) diameter dimension is identical with the connecting rod (912) diameter dimension.
5. being used for the detection of electrical leakage structure of high power device radiator as claimed in claim 4, which is characterized in that the test
Component (8) further includes the second test point (82), and the connector (9) further includes second connecting portion (92), in the first through hole
(21) insulating layer (22) are set, the insulating layer (22) setting the first connecting portion (91) and the fixed bracket (2) it
Between.
6. being used for the detection of electrical leakage structure of high power device radiator as claimed in claim 5, which is characterized in that the PCB
Third through-hole (42) are arranged in plate (4), and the length dimension of the first connecting portion (91) is greater than the length of the second connecting portion (92)
Spend size；The second connecting portion (92) passes through the third through-hole (42) and connect with the fixed bracket (2).
7. being used for the detection of electrical leakage structure of high power device radiator as claimed in claim 6, which is characterized in that the insulation
Gasket (5) is arranged between the fixed bracket (2) and the radiator (3).
8. being used for the detection of electrical leakage structure of high power device radiator as described in claim 1, which is characterized in that prompt component
(71) it is connect with the detection module (7), the prompt component (71) includes buzzer and/or warning light.
9. being used for the detection of electrical leakage structure of high power device radiator as described in claim 1, which is characterized in that the baffle
(6) it is set as dew copper copper foil, the connector (9) is set as screw.
10. being used for the detection of electrical leakage structure of high power device radiator as described in claim 1, which is characterized in that the inspection
It surveys module (7) and is set as ICT chunking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820686278.2U CN208207113U (en) | 2018-05-09 | 2018-05-09 | A kind of detection of electrical leakage structure for high power device radiator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820686278.2U CN208207113U (en) | 2018-05-09 | 2018-05-09 | A kind of detection of electrical leakage structure for high power device radiator |
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| Publication Number | Publication Date |
|---|---|
| CN208207113U true CN208207113U (en) | 2018-12-07 |
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ID=64520265
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820686278.2U Active CN208207113U (en) | 2018-05-09 | 2018-05-09 | A kind of detection of electrical leakage structure for high power device radiator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108459236A (en) * | 2018-05-09 | 2018-08-28 | 奥克斯空调股份有限公司 | A kind of detection of electrical leakage structure for high power device radiator |
-
2018
- 2018-05-09 CN CN201820686278.2U patent/CN208207113U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108459236A (en) * | 2018-05-09 | 2018-08-28 | 奥克斯空调股份有限公司 | A kind of detection of electrical leakage structure for high power device radiator |
| CN108459236B (en) * | 2018-05-09 | 2024-03-08 | 奥克斯空调股份有限公司 | Leakage detection structure for high-power device radiator |
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