CN118299223B - A relay mounted without a harness - Google Patents
A relay mounted without a harness Download PDFInfo
- Publication number
- CN118299223B CN118299223B CN202410493192.8A CN202410493192A CN118299223B CN 118299223 B CN118299223 B CN 118299223B CN 202410493192 A CN202410493192 A CN 202410493192A CN 118299223 B CN118299223 B CN 118299223B
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- Prior art keywords
- shell
- bottom shell
- relay
- groove
- slot
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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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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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/14—Terminal arrangements
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/18—Printed circuits structurally associated with non-printed electric components
- H05K1/181—Printed circuits structurally associated with non-printed electric components associated with surface mounted components
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Casings For Electric Apparatus (AREA)
Abstract
The invention relates to the technical field of relays, and provides a relay installed by wireless beams, which comprises a bottom shell, a shell and a coil, wherein the shell is detachably fixed on the bottom shell, and a clamping groove is formed in the shell; the coil comprises a framework and an extraction piece; one end of the leading-out sheet is fixedly arranged on the framework, the other end of the leading-out sheet is adhered in the clamping groove through glue, and the middle position of the leading-out sheet is parallel to and spaced from the side surface of the bottom shell penetrated by the leading-out sheet. According to the invention, the leading-out sheet is arranged between the bottom shell and the shell, the middle position of the leading-out sheet is parallel to the side surface of the leading-out sheet penetrating through the bottom shell and is welded with the PCBA, and corresponding perforation is not required to be arranged on the PCBA, so that the structural strength and the processing efficiency of the PCBA are ensured, the fixing firmness degree of the relay and the PCBA is improved, and the use safety of the automobile BDU is ensured.
Description
Technical Field
The invention relates to the technical field of relays, in particular to a relay installed by a wireless beam.
Background
The relay is an important component part in a BDU (battery pack breaking unit) system of the new energy automobile, is not only responsible for breaking the battery system when necessary, but also relates to various aspects such as insulation, control signal cutting, fault detection and treatment and the like, and is important for guaranteeing the safety of drivers and vehicles.
The invention patent with the publication number of CN104427763B discloses an integrated structure which is connected to the main structure of the power supply controller through a fastening component, and pins of the integrated structure are welded on a printed board; the power relay shell is isolated from the main structure of the power supply controller by the insulating gasket; the shell of the power relay is connected with the main structure of the power controller in a high-resistance grounding mode through a U-shaped soldering lug.
In the above technical scheme, in order to realize the wire-free harness connection of the relay, the pins of the relay pass through the PCBA plate and are welded with the PCBA plate, however, the corresponding perforation is required to be formed on the PCBA plate in advance in the connection mode, and the connection mode is not only unfavorable for the rapid processing of the PCBA plate, but also unfavorable for guaranteeing the structural strength of the PCBA plate.
Disclosure of Invention
In view of the above, the invention provides a relay installed by wireless beams, which guarantees the structural strength of a PCBA board on the basis of realizing the wireless beam-based connection of the relay.
The technical scheme of the invention is realized as follows: the invention provides a relay installed by wireless beams, which comprises a bottom shell, a shell and a coil, wherein,
The shell is detachably fixed on the bottom shell and horizontally arranged on the PCBA, and a clamping groove is formed in the shell;
the coil comprises a framework and an extraction piece, wherein,
The framework is fixedly arranged in the bottom shell;
One end of the leading-out sheet is fixedly arranged on the framework, the other end of the leading-out sheet is adhered in the clamping groove through glue, the leading-out sheet penetrates through the bottom shell, the middle position of the leading-out sheet is parallel to and spaced from the side surface of the bottom shell penetrated by the leading-out sheet, and the leading-out sheet and the PCBA board are connected through a welding mode.
On the basis of the technical proposal, preferably, the leading-out sheet comprises an extending part, a parallel part and a bending part, wherein,
One end of the extending part is fixedly arranged on the framework and penetrates through the bottom shell;
One end of the parallel part is integrally formed and continuously arranged at one end of the extending part far away from the framework, and the parallel part is parallel to and is arranged at intervals on the side surface of the bottom shell penetrated by the extending part;
One end of the bending part is integrally formed and continuously arranged at one end of the parallel part far away from the extending part, and the other end of the bending part is adhered in the clamping groove through glue.
Still more preferably, the bottom shell is provided with a mounting groove, and one side of the protruding part far away from the shell abuts against the mounting groove.
Still more preferably, a hidden groove is formed in the bending part far away from one end of the parallel part;
The clamping groove comprises a slot and a limiting groove, the leading-out piece further comprises a first clamping tongue, wherein,
The slot is formed in the shell, the bending part is arranged in the slot in a sliding manner, and a space is arranged between the bending part and the slot;
the limiting groove is formed in the side wall in the slot;
One end of the first clamping tongue, which is close to the bottom shell, is integrally formed on the bending part, the other end of the first clamping tongue is arranged at intervals with the bending part, and the first clamping tongue selectively moves into the hiding groove and selectively abuts against one side, which is far away from the bottom shell, in the limiting groove.
Still further preferably, the guiding-out piece further includes a second clamping tongue, one end of the second clamping tongue, which is far away from the bottom shell, is integrally formed on the bending portion, the other end of the second clamping tongue is arranged at intervals with the bending portion, and the second clamping tongue selectively moves into the hiding groove and selectively abuts against one side, close to the bottom shell, of the limiting groove.
Still further preferably, the first clamping tongue and the second clamping tongue are respectively selectively abutted against one side, away from the bending part, of the limiting groove.
Still further preferably, the skeleton abuts against a side of the bottom shell, which is close to the mounting groove, and a side of the bottom shell, which is far away from the mounting groove.
On the basis of the technical proposal, preferably, the shell comprises a shell body and a U-shaped frame, wherein,
The shell is detachably fixed on the bottom shell;
The U-shaped frame is fixedly arranged in the shell and is enclosed with the shell to form the clamping groove.
Still further preferably, the bottom case includes a fixing base and a latch, wherein,
One end of the fixed seat is inserted into the shell, one end of the fixed seat, which is close to the shell, is propped against the shell, and one end of the shell, which is close to the fixed seat, is propped against the fixed seat;
The elastic tongue is fixedly arranged on the fixed seat, a fixed groove is formed in the shell, and the elastic tongue is selectively clamped with the fixed groove.
On the basis of the above technical solution, preferably, an included angle between the parallel portion and the extending portion is the same as an included angle between the parallel portion and the bending portion.
Compared with the prior art, the relay installed by the wireless beam has the following beneficial effects:
(1) The leading-out sheet is arranged between the bottom shell and the shell, the middle position of the leading-out sheet is parallel to the side surface of the bottom shell and is welded with the PCBA, and corresponding perforation is not required to be arranged on the PCBA, so that the structural strength and the processing efficiency of the PCBA are ensured, the fixing firmness degree of the relay and the PCBA is improved, and the use safety of the automobile BDU is ensured;
(2) The first clamping tongue, the limiting groove and the mounting groove are arranged, so that the leading-out sheet can be limited, and the parallelism of the parallel part and the side surface of the bottom shell is ensured by matching the abutting of the framework and the inner wall of the bottom shell;
(3) Through setting up the shell to including casing and U type frame, not only can realize the setting of draw-in groove, make things convenient for the batch processing of shell, can also strengthen the structural strength of draw-in groove lateral wall, avoid appearing the problem that the shell takes place to warp when exerting pressure to the tab.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a front view of a wireless beam mounted relay of the present invention mounted on a PCBA board;
FIG. 2 is a cross-sectional view of a wireless beam mounted relay of the present invention;
FIG. 3 is an enlarged view of FIG. 2 at A;
FIG. 4 is a perspective view of a wireless beam mounted relay of the present invention;
FIG. 5 is a perspective view of a coil in a wireless beam mounted relay of the present invention;
FIG. 6 is a perspective view of a coil in a wireless beam mounted relay of the present invention;
FIG. 7 is a perspective view of a wireless beam mounted relay of the present invention at the lead-out tab;
FIG. 8 is a cross-sectional view of a wireless beam mounted relay of the present invention at a limit slot;
FIG. 9 is a bottom view of a housing of a wireless beam mounted relay of the present invention;
Fig. 10 is a perspective view of a bottom case of a wireless beam mounted relay of the present invention.
Wherein: 1. a bottom case; 11. a fixing seat; 12. spring tongue; 101. a mounting groove; 2. a housing; 21. a housing; 22. a U-shaped frame; 201. a clamping groove; 2011. a slot; 2012. a limit groove; 202. a fixing groove; 3. a coil; 31. a skeleton; 32. a lead-out sheet; 321. an extension; 322. a parallel portion; 323. a bending part; 324. a first clamping tongue; 325. a second clamping tongue; 301. hiding the groove; 4. PCBA board.
Detailed Description
The following description of the embodiments of the present invention will be made in detail and with reference to specific embodiments of the present invention, but it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, are intended to fall within the scope of the present invention.
As shown in fig. 1 to 10, a relay for wireless beam installation of the present invention includes a bottom case 1, a housing 2, and a coil 3.
Wherein the bottom shell 1 is used for bearing electric components inside the relay.
The shell 2 is used for combining with the bottom shell 1 to form a closed installation space, the shell 2 is detachably fixed on the bottom shell 1 and horizontally installed on the PCBA board 4, the side face of the relay is parallel to the PCBA board 4 after horizontal installation, and compared with a conventional vertical installation mode, the vertical height of the BDU can be reduced, and the BDU is favorable for lightening and thinning design of the BDU.
The coil 3 is used for realizing electromagnetic effect to control the electric shock state of the relay, the coil 3 comprises a framework 31 and a leading-out sheet 32, wherein the framework 31 is fixedly arranged in the bottom shell 1, and the electromagnetic coil is sleeved on the framework 31; the shell 2 is provided with a clamping groove 201; one end of the leading-out sheet 32 is fixedly arranged on the framework 31, the other end is adhered in the clamping groove 201 through glue, the leading-out sheet 32 penetrates through the bottom shell 1, the middle position of the leading-out sheet 32 is parallel to and spaced from the side surface of the bottom shell 1 penetrated by the leading-out sheet 21, and is connected with the PCBA 4 through a welding mode; utilize the interval of tab 32 and drain pan 1, can conveniently weld tab 32 and PCBA board 4, as shown in FIG. 1, tab 32 is on a parallel with the portion of drain pan 1 side and supports and paste PCBA board 4, and be connected through the welding mode with it, not only increased the area of contact of two, avoid taking place to take place to weld, leak the problem of welding, still need not to predetermine on PCBA board 4 and punch, be favorable to promoting PCBA board 4's machining efficiency and structural strength, the safety in utilization of relay and PCBA board 4, simultaneously, because tab 32's both ends are fixed with drain pan 1 and shell 2 respectively, its structural strength has also obtained the guarantee, avoid making the relay take place to warp when carrying out welding pressure to tab 32.
As shown in fig. 7, the lead tab 32 includes an extension 321, a parallel portion 322, and a bent portion 323, wherein one end of the extension 321 is fixedly disposed on the frame 31 and penetrates the bottom case 1; one end of the parallel portion 322 is integrally formed and continuously arranged at one end of the extending portion 321 far away from the framework 31, and is parallel to and spaced from the side surface of the bottom shell 1 penetrated by the extending portion 321; one end of the bending portion 323 is integrally formed and continuously arranged at one end of the parallel portion 322 away from the extending portion 321, and the other end of the bending portion 323 is adhered in the clamping groove 201 through glue, namely, the middle position of the leading-out sheet 32 is parallel to the side face of the bottom shell 1 in a bending mode, and batch processing of the leading-out sheets 32 is facilitated.
In order to avoid deformation of the lead-out sheet 32 when the lead-out sheet 32 receives the thrust, the parallel degree between the middle position of the lead-out sheet 32 and the side surface of the bottom shell 1 is guaranteed, the bottom shell 1 is provided with a mounting groove 101, one side of the extending part 321 far away from the shell 2 is abutted against the mounting groove 101, as shown in fig. 3, when the shell 2 is mounted on the bottom shell 1, the left thrust is applied to the lead-out sheet 32, and the left side of the extending part 321 is abutted against the inner wall of the mounting groove 101, so that deformation of the lead-out sheet 32 in the mounting process of the shell 2 and the bottom shell 1 can be avoided.
As shown in fig. 8, the card slot 201 includes a slot 2011 and a limit slot 2012, and as shown in fig. 7, a hidden slot 301 is formed in an end of the bending portion 323 far from the parallel portion 322; the lead-out piece 32 further comprises a first clamping tongue 324, a slot 2011 is formed in the shell 2, and a bending part 323 is arranged in the slot 2011 in a sliding manner; the limiting groove 2012 is formed on the side wall in the slot 2011; one end of the first clamping tongue 324, which is close to the bottom shell 1, is integrally formed on the bending part 323, the other end of the first clamping tongue 324 is arranged at intervals, namely, one end of the first clamping tongue 324, which is far away from the framework 31, is tilted, the first clamping tongue 324 selectively moves into the hiding groove 301 and selectively abuts against one side, which is far away from the bottom shell 1, in the limiting groove 2012, when the shell 2 is arranged on the bottom shell 1, the first clamping tongue 324 is pressed firstly to move into the hiding groove 301, then the bending part 323 is inserted into the slot 2011, in the sliding process of the bending part 323 in the slot 2011, the elasticity of the first clamping tongue 324 can apply the force for moving out of the hiding groove 301 to the first clamping tongue 324 until the first clamping tongue 324 moves to the position of the limiting groove 2012 and abuts against one end, which is far away from the bottom shell 1, so that the limit effect is matched with the limit of the upper mounting groove 101, which limits the other end of the lead-out piece 32, both ends of the lead-out piece 32 can be subjected to the abutting force, and thus the fact that the middle position of the lead-out piece 32 and the side of the relay 32 can be firmly fixed is guaranteed; meanwhile, the leading-out piece 32 is fixedly connected with the clamping groove 201 through glue, so that the glue is fully contacted with the leading-out piece 32 and the clamping groove 201, abrasion of the leading-out piece 32 during sliding in the clamping groove 201 is avoided, a space is arranged between the bending portion 323 and the slot 2011, in the process that the bending portion 323 is inserted into the slot 2011, the separation distance between one end of the first clamping tongue 324, far away from the bottom shell 1, and the bending portion 323 is increased through glue resistance, the separation distance between the first clamping tongue 324 and the bending portion 323 is kept to be the maximum position, pushing force is applied to the bending portion 323 through the first clamping tongue 324, one side, far away from the first clamping tongue 324, of the bending portion 323 abuts against the side wall of the slot 2011, and accuracy of the installation position of the leading-out piece 32 is guaranteed.
In order to avoid the lead-out tab 32 from separating from the card slot 201, the lead-out tab 32 further includes a second clamping tongue 325, one end of the second clamping tongue 325 away from the bottom shell 1 is integrally formed on the bending portion 323, the other end is spaced from the second clamping tongue 325, the second clamping tongue 325 selectively moves into the hiding slot 301 and selectively abuts against one side of the limiting slot 2012, which is close to the bottom shell 1, the end of the second clamping tongue 325, which is tilted, is opposite to the end of the first clamping tongue 324, and opposite to the position of the limiting slot 2012, so that the bending portion 323 is prevented from sliding in the slot 2011 by using the clamping connection between the first clamping tongue 324 and the second clamping tongue 325 and the limiting slot 2012.
In order to make the bent portion 323 abut against one side in the slot 2011 after being mounted, the second latch 325 and the first latch 324 should selectively abut against one side, away from the bent portion 323, in the limiting slot 2012.
As shown in fig. 2 and 5, the skeleton 31 abuts against one side of the bottom shell 1 close to the mounting groove 101 and one side of the bottom shell 1 far away from the mounting groove 101, that is, one side of the skeleton 31 where the lead-out piece 32 is mounted and one side of the skeleton 31 far away from the lead-out piece 32 abut against the inner wall of the bottom shell 1, so that the lead-out piece 32 cannot move when assembled with the shell 2, the lead-out piece 32 cannot be displaced when the lead-out piece 32 is pressed and welded, and the parallelism of the middle position of the lead-out piece 32 and the peripheral side of the relay and the structural strength of the relay can be guaranteed.
As shown in fig. 9, the housing 2 includes a case 21 and a U-shaped frame 22, wherein the case 21 is detachably fixed to the bottom case 1; the U-shaped frame 22 is fixedly disposed in the housing 21 and encloses the housing 2 to form a slot 201, and by designing the housing 2 as a combined structure, the structural strength of the side wall of the slot 201 (especially the stress side of the slot 201) can be enhanced, and the size of the slot 201 can be enlarged to adapt to the lead-out sheets 32 with different sizes, compared with the manner of directly opening the slot 201 on the rectangular housing 2.
For detachable fixed connection of the bottom shell 1 and the shell 2, the bottom shell 1 comprises a fixed seat 11 and a spring tongue 12, wherein one end of the fixed seat 11 is inserted into a shell 21, one end of the fixed seat 11, which is close to the shell 21, is propped against the shell 21, one end of the shell 21, which is close to the fixed seat 11, is propped against the fixed seat 11, so that extrusion damage is avoided when the shell 21 and the fixed seat 11 are stressed after being installed; the latch 12 is fixedly arranged on the fixed seat 11, the shell 21 is provided with a fixed groove 202, the latch 12 is selectively clamped with the fixed groove 202, and the shell 21 is prevented from being separated from the fixed seat 11 by the clamping of the latch 12 and the fixed groove 202.
As shown in fig. 3, the included angle between the parallel portion 322 and the extension portion 321 is the same as the included angle between the parallel portion 322 and the bending portion 323, that is, one end of the extension portion 321 close to the parallel portion 322 and one end of the bending portion 323 close to the parallel portion 322 are symmetrically arranged about the center line of the parallel portion 322, so that the parallel portion 322 is uniformly stressed when being subjected to pressure welding, the problem of deflection deformation is avoided, and the accuracy of the welding position of the relay is ensured.
The using method of the relay installed by the wireless beam comprises the following steps:
when the relay is processed, firstly, the coil 3 and related components are installed in the bottom shell 1, then glue is injected into the clamping groove 201, finally, the shell 2 and the bottom shell 1 are buckled, the leading-out sheet 32 is inserted into the clamping groove 201, and the middle position of the leading-out sheet 32 is ensured to be parallel to the side surface of the bottom shell 1;
When the relay is fixed on the PCBA 4, the relay is firstly placed horizontally at the corresponding position on the PCBA 4, the middle position of the lead-out piece 32 is abutted against the metal connecting piece on the PCBA 4, and then the lead-out piece 32 and the PCBA 4 are welded.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410493192.8A CN118299223B (en) | 2024-04-23 | 2024-04-23 | A relay mounted without a harness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410493192.8A CN118299223B (en) | 2024-04-23 | 2024-04-23 | A relay mounted without a harness |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN118299223A CN118299223A (en) | 2024-07-05 |
| CN118299223B true CN118299223B (en) | 2024-11-26 |
Family
ID=91683714
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410493192.8A Active CN118299223B (en) | 2024-04-23 | 2024-04-23 | A relay mounted without a harness |
Country Status (1)
| Country | Link |
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| CN (1) | CN118299223B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN219329218U (en) * | 2023-04-03 | 2023-07-11 | 欣大电气有限公司 | High-voltage direct-current relay with structure for restraining reverse electromotive force |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8801467B2 (en) * | 2012-11-16 | 2014-08-12 | Chung Uei Precision Industry Co., Ltd. | Electrical connector |
| CN211294973U (en) * | 2019-11-01 | 2020-08-18 | 厦门宏发汽车电子有限公司 | Electromagnetic relay capable of being pasted with circuit board |
| US12020879B2 (en) * | 2019-11-01 | 2024-06-25 | Xiamen Hongfa Automotive Electronics Co., Ltd. | Electromagnetic relay |
| CN112509868A (en) * | 2020-10-29 | 2021-03-16 | 厦门宏发电声股份有限公司 | Electromagnetic relay with clamping structure |
| CN215869148U (en) * | 2021-08-09 | 2022-02-18 | 厦门宏发电力电器有限公司 | Coil leading-out structure and high-voltage direct-current relay |
| CN219842937U (en) * | 2023-04-23 | 2023-10-17 | 昆山国力电子科技股份有限公司 | Relay |
| CN219497663U (en) * | 2023-04-23 | 2023-08-08 | 昆山国力电子科技股份有限公司 | DC contactor |
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2024
- 2024-04-23 CN CN202410493192.8A patent/CN118299223B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN219329218U (en) * | 2023-04-03 | 2023-07-11 | 欣大电气有限公司 | High-voltage direct-current relay with structure for restraining reverse electromotive force |
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| CN118299223A (en) | 2024-07-05 |
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Country or region after: China Address after: 430000, No. 138 Fengshu 6th Road, Wuhan Economic and Technological Development Zone, Wuhan City, Hubei Province Applicant after: Wuhan Jiachen Electronic Technology Co.,Ltd. Address before: 430000 South Zone 1, floor 1, auxiliary workshop, plot 2mA, Wuhan Economic and Technological Development Zone, Wuhan City, Hubei Province Applicant before: Wuhan Jiachen Electronic Technology Co.,Ltd. Country or region before: China |
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