CN114121553A - High-voltage contactor mounting structure and high-voltage distribution box - Google Patents
High-voltage contactor mounting structure and high-voltage distribution box Download PDFInfo
- Publication number
- CN114121553A CN114121553A CN202111383075.9A CN202111383075A CN114121553A CN 114121553 A CN114121553 A CN 114121553A CN 202111383075 A CN202111383075 A CN 202111383075A CN 114121553 A CN114121553 A CN 114121553A
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- Prior art keywords
- voltage contactor
- voltage
- mounting structure
- hole
- contactor
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- 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.)
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Links
- 238000009826 distribution Methods 0.000 title claims abstract description 20
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 50
- 229910052802 copper Inorganic materials 0.000 claims abstract description 50
- 239000010949 copper Substances 0.000 claims abstract description 50
- 238000005192 partition Methods 0.000 claims description 8
- 230000003014 reinforcing effect Effects 0.000 claims description 5
- 238000001746 injection moulding Methods 0.000 claims description 4
- 230000008878 coupling Effects 0.000 claims 3
- 238000010168 coupling process Methods 0.000 claims 3
- 238000005859 coupling reaction Methods 0.000 claims 3
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000003825 pressing Methods 0.000 abstract description 4
- 230000033764 rhythmic process Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000009413 insulation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 239000004831 Hot glue Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
- H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
- H01H50/047—Details concerning mounting a relays
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/14—Terminal arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/015—Boards, panels, desks; Parts thereof or accessories therefor
- H02B1/04—Mounting thereon of switches or of other devices in general, the switch or device having, or being without, casing
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
Abstract
The invention provides a high-voltage contactor mounting structure and a high-temperature distribution box, wherein the high-voltage contactor mounting structure comprises a lower shell, an upper shell and a high-voltage contactor, the lower shell is fixedly connected with the upper shell, the lower shell comprises a body part and two copper bars, the upper shell comprises a top plate and an elastic piece, one end of the elastic piece extends out of the top plate, two contacts electrically contacted with the copper bars are arranged at the top of the high-voltage contactor, a first connecting hole is formed in each copper bar, a second connecting hole corresponding to the first connecting hole is formed in each contact, a locking piece fixedly connects the lower shell with the high-voltage contactor through the first connecting hole and the second connecting hole, and the elastic piece abuts against the top of the high-voltage contactor. In the high-voltage contactor mounting structure and the high-voltage distribution box, the high-voltage contactor can be safely fixed through the two locking pieces and the elastic piece for pressing the high-voltage contactor, the assembly is simple, the number of assembly stations is small, the production rhythm is accelerated, and the requirements of large current and high voltage can be met.
Description
Technical Field
The invention relates to the technical field of electric automobiles, in particular to a high-voltage contactor mounting structure and a high-voltage distribution box.
Background
With the development of society and the increasing importance of people on environmental protection, electric automobiles are more and more widely applied. The electric automobile uses electric power as a power source, has the characteristics of high efficiency, low noise, reduction of exhaust emission and the like, and can greatly save fuel energy.
At present, high-voltage main circuits of electric automobiles are all designed with high-voltage contactors, mainly play a role in protecting circuit switches and circuits, and are components and parts which control large-current operation by small current. The high voltage contacts are typically mounted within a high voltage distribution box or integrated on a PCB board. When high voltage contactor installed in high voltage distribution box, high voltage contactor had two installation feet and two contacts, realized installation and electric connection through two pairs of bolts respectively, but the unable fastener specification of unifying of two pairs of bolts of standard article on the market at present is equipped with shortcoming such as moment is non-uniform, influence the production beat at the production line. When the high-voltage contactor is integrated on a PCB, the high-voltage contactor cannot be applied to high-current and high-voltage loops due to poor heat dissipation of the PCB. How to design the installation of the high-voltage contactor in the high-voltage distribution box is a difficult point and a pain point of the design of the whole high-voltage distribution box.
Disclosure of Invention
The invention aims to provide a high-voltage contactor mounting structure and a high-voltage distribution box with a high production beat.
The embodiment of the invention provides a high-voltage contactor mounting structure which comprises a lower shell, an upper shell and a high-voltage contactor, wherein the lower shell is fixedly connected with the upper shell, the lower shell comprises a body part and two copper bars fixed on the body part, the upper shell comprises a top plate and an elastic piece fixed on the top plate, one end of the elastic piece extends out of the top plate, two contacts are arranged at the top of the high-voltage contactor, the two contacts are respectively in electrical contact with the two copper bars, a first connecting hole is formed in each copper bar, a second connecting hole corresponding to the first connecting hole is formed in each contact, a locking piece fixedly connects the lower shell with the high-voltage contactor through the first connecting hole and the second connecting hole, and the elastic piece abuts against the top of the high-voltage contactor.
In one embodiment, the main body of the lower housing includes a bottom plate and a side plate, the side plate is vertically disposed at an outer edge of the bottom plate, a shape defined by the side plate corresponds to a cross-sectional shape of the high-voltage contactor, and one end of the high-voltage contactor extends into a space defined by the side plate.
In one embodiment, the copper bar is arranged on one side of the bottom plate, which faces away from the high-voltage contactor, and the copper bar is fixedly connected with the bottom plate in an integrated injection molding mode.
In one embodiment, the bottom plate is provided with a through hole, so that at least part of the copper bar is exposed, and the copper bar and/or the contact are inserted into the through hole so that the copper bar and the contact are contacted with each other.
In one embodiment, the bottom plate is provided with spacing grooves, the two copper bars are respectively positioned at two sides of the spacing grooves, and the bottom of the high-voltage contactor is further provided with a partition plate which is inserted into the spacing grooves of the lower shell.
In one embodiment, the copper bar is provided with a sinking groove communicated with the first connecting hole, and the head of the locking piece is accommodated in the sinking groove.
In one embodiment, a mounting post is arranged on one side surface of the top plate of the upper shell, which faces the high-voltage contactor, a mounting hole is formed in the mounting post, and the elastic piece is fixed in the mounting hole; or a reinforcing plate is further arranged on the top plate.
In one embodiment, the top of the high-voltage contactor is provided with a containing hole, and the elastic part is partially inserted into the containing hole; or the top of the high-voltage contactor is provided with a positioning column, and the elastic part is partially sleeved on the positioning column.
In one embodiment, the locking member is a screw, the second connecting hole is a threaded hole, and the locking member passes through the first connecting hole of the copper bar and is in threaded connection with the second connecting hole of the high-voltage contactor.
The embodiment of the invention also provides a high-voltage distribution box, which comprises a high-voltage distribution box body and the high-voltage contactor mounting structure, wherein the lower shell and the upper shell are connected to the high-voltage distribution box body.
In the high-voltage contactor mounting structure and the high-voltage distribution box, the high-voltage contactor can be safely fixed through the two locking pieces and the elastic piece for pressing the high-voltage contactor, the assembly is simple, the number of assembly stations is small, the production rhythm is accelerated, and the requirements of large current and high voltage can be met.
Drawings
Fig. 1 is an assembly structure diagram of a high voltage contactor mounting structure according to an embodiment of the present invention.
Fig. 2 is an exploded view schematically illustrating the mounting structure of the high voltage contactor shown in fig. 1.
Fig. 3 is a side view of the high voltage contactor mounting structure shown in fig. 1.
Fig. 4 is a cross-sectional view taken along line a-a of fig. 3.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects of the present invention will be made with reference to the accompanying drawings and examples.
Fig. 1 is an assembly structure diagram of a high voltage contactor mounting structure according to an embodiment of the present invention; fig. 2 is an exploded view of the mounting structure of the high voltage contactor shown in fig. 1; FIG. 3 is a side view of the high voltage contactor mounting structure of FIG. 1; fig. 4 is a cross-sectional view taken along line a-a of fig. 3. Referring to fig. 1 to 4, the high voltage contactor mounting structure of the present embodiment includes a lower housing 11, an upper housing 13, and a high voltage contactor 15, where the lower housing 11 and the upper housing 13 are fixedly connected. The lower case 11 includes a body portion 112 and two copper bars 114 fixed to the body portion 112. The upper case 13 includes a top plate 132 and an elastic member 134 fixed to the top plate 132, and one end of the elastic member 134 protrudes from the top plate 132. The bottom of the high voltage contactor 15 is provided with two contacts 152. The two contacts 152 are respectively in electrical contact with the two copper bars 114, the copper bars 114 are provided with first connection holes 115, the contacts 152 are provided with second connection holes 154 corresponding to the first connection holes 115, the locking member 17 fixedly connects the lower housing 11 and the high-voltage contactor 15 through the first connection holes 115 and the second connection holes 154, and the elastic member 134 abuts against the top of the high-voltage contactor 15.
In the high-voltage contactor mounting structure provided by the embodiment of the invention, the high-voltage contactor can be safely fixed through the two locking parts and the elastic part for pressing the high-voltage contactor, the assembly is simple, the number of assembly stations is small, the production rhythm is accelerated, and the requirements of large current and high voltage can be met.
In this embodiment, the body portion 112 of the lower housing 11 includes a bottom plate 116 and a side plate 118, the side plate 118 is vertically disposed at an outer edge of the bottom plate 116, a shape enclosed by the side plate 118 corresponds to a cross-sectional shape of the high-voltage contactor 15, and one end of the high-voltage contactor 15 extends into a space enclosed by the side plate 118. Like this, lower shell 11 is spacing to high voltage contactor 15's X, Y direction, can guarantee that contact 152 and copper bar 114 counterpoint to the process of alignment hole site when omitting the staff assembly for the beat of production, copper bar 114 has then played the spacing effect of Z direction.
Specifically, the copper bar 114 is provided on a side of the bottom plate 116 facing away from the high-voltage contactor 15. More specifically, the copper bar 114 and the bottom plate 116 are fixedly connected by injection-molding (insert-molding). The copper bar 114 and the bottom plate 116 are formed in an integrated injection molding mode, so that the assembling process of the copper bar 114 and the lower shell 11 can be reduced, and the production beat is accelerated.
Specifically, the bottom plate 116 is provided with a through hole, so that at least a part of the copper bar 114 is exposed, and the copper bar 114 and the contact 152 pass through the through hole to be in contact with each other, thereby realizing the electrical connection between the contact 152 and the copper bar 114. More specifically, the contact 152 protrudes from the bottom of the high voltage contactor 15, and the contact 152 passes through the through hole to contact the exposed portion of the copper bar 114. It will be appreciated that the copper bar 114 may also be made to protrude through the through hole to contact the contact 152; alternatively, the copper bar 114 and the contact 152 are both raised to extend into the through hole to contact with each other.
Specifically, the bottom plate 116 is provided with a spacing slot 1162, and the two copper bars 114 are respectively located at two sides of the spacing slot 1162. More specifically, the length of the spacing slot 1162 is greater than the length of the copper bar 114.
Specifically, the copper bar 114 is formed with a sunken groove 1142 communicating with the first connection hole 115 to receive the head of the locking member 17.
In this embodiment, a mounting post 135 is disposed on a surface of the top plate 132 of the upper housing 13 facing the high-voltage contactor 15, a mounting hole 1352 is formed in the mounting post 135, and the elastic member 134 is fixed in the mounting hole 1352. Specifically, the elastic members 134 may be fixed into the mounting holes 1352 by hot melt adhesive. In order to ensure a secure fastening of the high-voltage contact 15, the pressing force of the elastic element 134 may be 100N × m to 150N × m. Specifically, the elastic member 134 may be a cylindrical spring or an elastic member such as rubber. It is understood that in another embodiment, the resilient member 134 can be sleeved and fixed on the mounting post 135, and the mounting hole 1352 can be omitted.
Specifically, a reinforcing plate 137 is further provided on the top plate 132 to reinforce the strength of the upper case 13. Specifically, the reinforcing plate 137 may be provided on a side surface of the top plate 132 of the upper case 13 facing the high-voltage contactor 15. In the present embodiment, four reinforcing plates 137 extend from the edges of the top plate 132 to the mounting posts 135, respectively.
In this embodiment, the top of the high voltage contactor 15 is formed with a receiving hole 154, and the elastic member 134 is partially inserted into the receiving hole 154. It can be understood that a positioning column may also be disposed on the top of the high voltage contactor 15, and the elastic member 134 is sleeved on the positioning column.
Specifically, the bottom of the high voltage contactor 15 is further provided with a partition 156, and the partition 156 is inserted into the partition groove 1162 of the lower housing 11, so that the two copper bars 114 can be better separated to realize the insulation of the two copper bars 114. Specifically, the partition 156 protrudes below the bottom of the copper bar 114 to ensure a better insulation effect. More specifically, the length of the partition 156 is greater than that of the copper bar 114 to ensure a good insulation effect.
In this embodiment, the locking member 17 may be a screw, the second connection hole 154 is a threaded hole, and the locking member 17 passes through the first connection hole 115 of the copper bar 114 and is in threaded connection with the second connection hole 154 of the high voltage contactor 15. More specifically, the locking member 17 may be a countersunk screw. When the high-voltage contactor 15 is installed, the two locking pieces 17 are locked, the lower shell 11 and the high-voltage contactor 15 are fixedly connected, and the contact 152 is electrically contacted with the copper bar 114.
In this embodiment, the lower housing 11 and the upper housing 13 are both part of the high voltage distribution box, and the lower housing 11 and the upper housing 13 may be fixedly connected by fastening, snap-fit connection, or the like (not shown in the connection structure).
The mounting method of the high-voltage contactor mounting structure comprises the following steps: firstly, the high-voltage contactor 15 is placed in a space enclosed by the side plates 118 of the lower shell 11, then the two locking pieces 17 are fastened on the copper bar 114 and the contact 152, and finally, one end of the elastic piece 134 is placed in the accommodating hole 154 of the high-voltage contactor 15, and the upper shell 13 is fixedly connected with the lower shell 11. In the installation method, only two locking pieces 17 are needed, the torque is uniform, the production rhythm can be accelerated, the whole installation steps are few in process, and the reliability is high.
The invention also provides a high-voltage distribution box, which comprises a high-voltage distribution box body and the high-voltage contactor mounting structure, wherein the lower shell 11 and the upper shell 13 are connected to the high-voltage distribution box body.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. The high-voltage contactor mounting structure is characterized by comprising a lower shell (11), an upper shell (13) and a high-voltage contactor (15), wherein the lower shell (11) is fixedly connected with the upper shell (13), the lower shell (11) comprises a body part (112) and two copper bars (114) fixed on the body part (112), the upper shell (13) comprises a top plate (132) and an elastic part (134) fixed on the top plate (132), one end of the elastic part (134) extends out of the top plate (132), two contacts (152) are arranged at the top of the high-voltage contactor (15), the two contacts (152) are respectively in electrical contact with the two copper bars (114), a first connecting hole (115) is formed in the copper bars (114), a second connecting hole (154) corresponding to the first connecting hole (115) is formed in the contacts (152), the lower shell (11) is fixedly connected with the high-voltage contactor (15) through the first connecting hole (115) and the second connecting hole (154) by the locking piece (17), and the elastic piece (134) abuts against the top of the high-voltage contactor (15).
2. The mounting structure of a high-voltage contactor according to claim 1, wherein the body portion (112) of the lower case (11) includes a bottom plate (116) and a side plate (118), the side plate (118) is vertically disposed at an outer edge of the bottom plate (116), and a shape enclosed by the side plate (118) corresponds to a cross-sectional shape of the high-voltage contactor (15), and one end of the high-voltage contactor (15) extends into a space enclosed by the side plate (118).
3. The high-voltage contactor mounting structure according to claim 2, wherein the copper bar (114) is disposed on a side of the bottom plate (116) facing away from the high-voltage contactor (15), and the copper bar (114) and the bottom plate (116) are fixedly connected by an integral injection molding.
4. The mounting structure of a high-voltage contactor as claimed in claim 2, wherein the bottom plate (116) is formed with a through hole to expose at least a portion of the copper bar (114), and the copper bar (114) and/or the contact (152) are inserted into the through hole to contact the copper bar (114) and the contact (152) with each other.
5. The mounting structure of a high-voltage contactor according to claim 2, wherein the bottom plate (116) is formed with a spacing groove (1162), two of the copper bars (114) are respectively located at two sides of the spacing groove (1162), a partition plate (156) is further provided at the bottom of the high-voltage contactor (15), and the partition plate (156) is inserted into the spacing groove (1162) of the lower housing (11).
6. The mounting structure of a high-voltage contactor according to claim 1, wherein the copper bar (114) is formed with a sunken groove (1142) communicating with the first connecting hole (115), and the head of the locking member (17) is received in the sunken groove (1142).
7. The mounting structure for a high-voltage contactor according to claim 1, wherein a mounting post (135) is provided on a surface of the top plate (132) of the upper case (13) facing the high-voltage contactor (15), a mounting hole (1352) is formed in the mounting post (135), and the elastic member (134) is fixed in the mounting hole (1352); or a reinforcing plate (137) is also arranged on the top plate (132).
8. The mounting structure of a high-voltage contactor according to claim 1, wherein a receiving hole (154) is formed at the top of the high-voltage contactor (15), and the elastic member (134) is partially inserted into the receiving hole (154); or the top of the high-voltage contactor (15) is provided with a positioning column, and the elastic part (134) is partially sleeved on the positioning column.
9. The mounting structure of a high-voltage contactor according to claim 1, wherein the locking member (17) is a screw, the second coupling hole (154) is a screw hole, and the locking member (17) passes through the first coupling hole (115) of the copper bar (114) and is screw-coupled to the second coupling hole (154) of the high-voltage contactor (15).
10. A high voltage distribution box, comprising a high voltage distribution box body to which the lower case (11) and the upper case (13) are connected, and a high voltage contactor mounting structure according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111383075.9A CN114121553A (en) | 2021-11-22 | 2021-11-22 | High-voltage contactor mounting structure and high-voltage distribution box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111383075.9A CN114121553A (en) | 2021-11-22 | 2021-11-22 | High-voltage contactor mounting structure and high-voltage distribution box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114121553A true CN114121553A (en) | 2022-03-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111383075.9A Pending CN114121553A (en) | 2021-11-22 | 2021-11-22 | High-voltage contactor mounting structure and high-voltage distribution box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114121553A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003032841A (en) * | 2001-04-13 | 2003-01-31 | Furukawa Electric Co Ltd:The | Electrical connection box |
| CN204928015U (en) * | 2015-09-28 | 2015-12-30 | 东风汽车股份有限公司 | Electric automobile high-voltage switching box with direct current contactor |
| CN205845845U (en) * | 2016-05-23 | 2016-12-28 | 宁波正耀汽车电器有限公司 | A kind of AUTOMOTIVE RELAY seat |
| US20170103864A1 (en) * | 2015-10-12 | 2017-04-13 | Sumitomo Electric Wiring Systems, Inc. | Reduced height relay block for vehicle power distribution device |
| CN211617441U (en) * | 2020-01-13 | 2020-10-02 | 苏州汇川联合动力系统有限公司 | Power distribution device and electric automobile power system |
| CN212648144U (en) * | 2020-06-16 | 2021-03-02 | 威睿电动汽车技术(宁波)有限公司 | Relay device and vehicle |
-
2021
- 2021-11-22 CN CN202111383075.9A patent/CN114121553A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003032841A (en) * | 2001-04-13 | 2003-01-31 | Furukawa Electric Co Ltd:The | Electrical connection box |
| CN204928015U (en) * | 2015-09-28 | 2015-12-30 | 东风汽车股份有限公司 | Electric automobile high-voltage switching box with direct current contactor |
| US20170103864A1 (en) * | 2015-10-12 | 2017-04-13 | Sumitomo Electric Wiring Systems, Inc. | Reduced height relay block for vehicle power distribution device |
| CN205845845U (en) * | 2016-05-23 | 2016-12-28 | 宁波正耀汽车电器有限公司 | A kind of AUTOMOTIVE RELAY seat |
| CN211617441U (en) * | 2020-01-13 | 2020-10-02 | 苏州汇川联合动力系统有限公司 | Power distribution device and electric automobile power system |
| CN212648144U (en) * | 2020-06-16 | 2021-03-02 | 威睿电动汽车技术(宁波)有限公司 | Relay device and vehicle |
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Address after: 510000 No.8 Songgang street, Cencun, Tianhe District, Guangzhou City, Guangdong Province Applicant after: GUANGZHOU XIAOPENG MOTORS TECHNOLOGY Co.,Ltd. Address before: 510000 No. 8, Songgang Avenue, Cencun, Tianhe District, Guangzhou, Guangdong Applicant before: GUANGZHOU XIAOPENG MOTORS TECHNOLOGY Co.,Ltd. |