LLC transformer fixing support for vehicle-mounted charger of electric vehicle

Abstract

The LLC transformer fixing support for the vehicle-mounted charger of the electric vehicle comprises a support body and a pair of side baffles correspondingly arranged on the left side and the right side of the support body, and a containing gap used for containing a magnetic core and a winding framework exists between the two side baffles. A rear end baffle used for limiting a magnetic core is arranged at the position, corresponding to the containing gap, of one end of the support body, a front end baffle used for limiting the magnetic core is arranged at the other end of the support body, the front end baffle is detachably installed on the side baffles, and a protruding part matched with the magnetic core is arranged at the position, corresponding to the magnetic core, of the front end baffle. A detachable terminal supporting seat is arranged at the position, corresponding to the front end baffle, of the support body, and an installation hole used for installing a lead terminal is formed in the terminal supporting seat. The LLC transformer fixing support for the vehicle-mounted charger of the electric vehicle has the advantages of being high in structural stability and easy to assemble and use.

Description

Technical Field

[0001] The utility model belongs to the technical field of LLC transformers, and in particular relates to an LLC transformer fixing bracket for an on-board charger of an electric vehicle. Background Art

[0002] As the charging speed of electric vehicles becomes faster and faster, and the charging power becomes larger and larger, the huge heat generated by the LLC transformer of the on-board charger has become a problem that must be faced. At present, various high thermal conductivity plastics have appeared on the market. Using these high thermal conductivity plastics to make winding skeletons can effectively and quickly conduct heat to avoid temperature rise. However, the brittle and fragile characteristics of high thermal conductivity plastics require that the LLC transformer winding skeleton should be avoided as much as possible during installation and use.

[0003] As the level of manufacturing automation improves, in order to meet the requirements of automated production, LLC transformers need to have a smaller tolerance range for external dimensions and a fixed relative position of the connection terminals to ensure that the machine grabs the LLC transformer and places it in the correct position each time. However, the external dimension tolerance of a larger magnetic core is usually larger, and coupled with the cumulative assembly tolerance, the external dimension tolerance range of the existing winding bobbin and magnetic core will be larger after they are assembled together. The structural stability of the winding bobbin and magnetic core combination is not good, which is not conducive to the automated production machine grabbing. Utility Model Content

[0004] In view of this, the utility model aims to provide an LLC transformer fixing bracket for an on-board charger of an electric vehicle, so as to solve the problem of poor structural stability of the combination after the existing LLC transformer winding skeleton and the large-volume magnetic core are assembled.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] A LLC transformer fixing bracket for an on-board charger of an electric vehicle comprises a bracket body and a pair of side baffles correspondingly arranged on the left and right sides of the bracket body, wherein an accommodating gap for accommodating a magnetic core and a winding skeleton is provided between the two side baffles, a rear end baffle for limiting the magnetic core is provided at a position corresponding to the accommodating gap at one end of the bracket body, and a front end baffle for limiting the magnetic core is provided at the other end, the front end baffle is detachably mounted on the side baffle, and a protrusion cooperating with the magnetic core is provided at a position corresponding to the magnetic core on the front end baffle; a detachable terminal support seat is provided at a position corresponding to the front end baffle on the bracket body, and a mounting hole for mounting a lead terminal is provided on the terminal support seat.

[0007] Furthermore, the front end baffle is provided with a wire passing groove, which includes a transverse section and a longitudinal section. The longitudinal section is provided with an opening at one end facing the rear end baffle, and the other end is connected to the transverse section. One end of the transverse section is connected to the longitudinal section, and the other end is provided with a groove portion matching the shape of the wire.

[0008] Furthermore, the side baffle is connected to the bracket body via a reinforcing rib, one end of the reinforcing rib is connected to the side baffle, and the other end is connected to the bracket body.

[0009] Furthermore, the side baffle is provided with a bending portion that cooperates with the magnetic core.

[0010] Furthermore, at least two rear end baffles are provided corresponding to the side baffles, and the bending portions on one end of the side baffles facing the rear end baffles are all connected to the corresponding rear end baffles.

[0011] Furthermore, the bracket body is provided with an assembly groove for installing the terminal support seat, and plug-in parts are provided at positions corresponding to the assembly grooves on the left and right sides of the bracket body, and each of the plug-in parts is provided with at least two plug-in grooves at intervals, and each of the plug-in grooves is connected to the assembly groove, and the terminal support seat is provided with an insertion block that cooperates with the plug-in groove.

[0012] Furthermore, the left and right sides of the terminal support seat are provided with mounting grooves that cooperate with the plug-in portion.

[0013] Furthermore, a plurality of the mounting holes are arranged at intervals along the length direction of the terminal support seat, and a weight-reducing hole is provided on the terminal support seat at a position corresponding to the position between two adjacent mounting holes.

[0014] Furthermore, a protrusion for supporting the magnetic core is provided on the bracket body at a position corresponding to the magnetic core.

[0015] Furthermore, one end of the protrusion is connected to the rear end baffle, and the other end is provided with a guiding inclined surface for assembling the magnetic core.

[0016] Compared with the prior art, the LLC transformer fixing bracket for an electric vehicle on-board charger described in the utility model has the following advantages:

[0017] The utility model discloses a LLC transformer fixing bracket for an on-board charger of an electric vehicle, which has the advantages of high structural stability and is easy to assemble and use. By adopting such a fixing bracket to carry the magnetic core and the winding skeleton, the plastic winding skeleton can be prevented from being subjected to stress during the assembly, transportation and use of the LLC transformer. The freedom of the LLC transformer is completely limited by the contact between the magnetic core and the protrusions on the bracket body, the side baffles, the bent portions on the side baffles, the rear baffles, and the protrusions on the front baffles. The winding skeleton does not contact other parts except for carrying the coil and contacting the magnetic core. All stress points are on the magnetic core and the fixing bracket, and the winding skeleton is not subjected to stress. Therefore, even if the winding skeleton is made of fragile materials such as high thermal conductivity plastic for heat dissipation, the winding skeleton is not easily damaged by stress during assembly and use, thereby improving the overall structural stability of the LLC transformer. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0019] Figure 1 This is a structural schematic diagram of an LLC transformer fixing bracket for an on-board charger of an electric vehicle according to an embodiment of the utility model;

[0020] Figure 2 This is a structural schematic diagram of the rear end baffle of an LLC transformer fixing bracket for an on-board charger of an electric vehicle according to an embodiment of the utility model;

[0021] Figure 3 This is a structural schematic diagram of a bracket body in an LLC transformer fixing bracket for an on-board charger of an electric vehicle according to an embodiment of the utility model;

[0022] Figure 4 This is a schematic structural diagram of a terminal support seat in a LLC transformer fixing bracket for an on-board charger of an electric vehicle according to an embodiment of the utility model;

[0023] Figure 5 This is a schematic structural diagram of a front end baffle in a LLC transformer fixing bracket for an on-board charger of an electric vehicle described in an embodiment of the utility model.

[0024] Description of reference numerals:

[0025] 1. Bracket body; 2. Side baffle; 3. Bending part; 4. Magnetic core; 5. Winding frame; 6. Front baffle; 7. Terminal support seat; 8. Lead terminal; 9. Rear baffle; 10. Protrusion; 11. Assembly groove; 12. Plug-in part; 13. Plug-in groove; 14. Reinforcing rib; 15. Guide slope; 16. Fastener; 17. Insert block; 18. Mounting groove; 19. Mounting hole; 20. Weight reduction hole; 21. Wire groove; 22. Groove; 23. Card slot; 24. Protrusion. DETAILED DESCRIPTION

[0026] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0027] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0029] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0030] An LLC transformer fixing bracket for an electric vehicle onboard charger, such as Figures 1 to 5As shown, it includes a bracket body 1 and a pair of side baffles 2 correspondingly arranged on the left and right sides of the bracket body 1, and there is an accommodating gap between the two side baffles 2 for accommodating the magnetic core 4 and the winding skeleton 5. A rear end baffle 9 for limiting the magnetic core 4 is provided at a position corresponding to the accommodating gap at one end of the bracket body 1, and a front end baffle 6 for limiting the magnetic core 4 is provided at the other end. The front end baffle 6 is detachably installed on the side baffle 2, and a protrusion 24 cooperating with the magnetic core 4 is provided on the front end baffle 6 at a position corresponding to the magnetic core 4; a detachable terminal support seat 7 is provided at a position corresponding to the front end baffle 6 on the bracket body 1, and a mounting hole 19 for mounting a lead terminal 8 is provided on the terminal support seat 7.

[0031] Exemplarily, the side baffles 2 and the rear baffles 9 are both fixed on the bracket body 1, wherein the rear baffles 9 need to be set corresponding to the magnetic core 4. For example, in this embodiment, there are three magnetic cores 4 involved in the LLC transformer, of which two magnetic cores 4 are respectively set corresponding to the side baffles 2 on the left and right sides, and the remaining one is set corresponding to the middle part of the bracket body 1. The two adjacent magnetic cores 4 are connected by a winding skeleton 5, and the winding skeleton 5 is provided with a block that cooperates with the magnetic core 4 and a wire groove for winding. Therefore, in order to ensure the stability of the magnetic core 4 on the bracket body 1, three rear baffles 9 need to be set accordingly, so that the rear baffles 9 can play a good limiting role on the corresponding magnetic core 4 to prevent the magnetic core 4 from moving.

[0032] In actual application, the entire fixed bracket can be made of plastic with high strength and good toughness to bear the force. Among them, the side baffle 2 can play a good limiting role on the side of the magnetic core 4 and the winding frame 5 combination, while the rear baffle 9 and the front baffle 6 can play a good limiting role on the magnetic core 4 and the winding frame 5 combination. By setting the rear baffle 9 corresponding to the magnetic core 4 and setting a protrusion 24 on the front baffle 6 at the position corresponding to the magnetic core 4, the stability of the magnetic core 4 on the bracket body 1 can be further improved, preventing the magnetic core 4 from moving during the LLC transformer assembly process, and avoiding the winding frame 5 from being subjected to force.

[0033] Optionally, the front baffle 6 and the side baffle 2 can be connected by snap-fit ​​connection, for example, snap-fit ​​parts 16 are fixed on the two side baffles 2 on the left and right sides, and the left and right ends of the front baffle 6 are provided with snap-fitting grooves 23 that cooperate with the snap-fitting parts 16. By using the snap-fitting parts 16 to cooperate with the snap-fitting grooves 23, the front baffle 6 can be conveniently assembled, and the operation is more convenient. In addition, those skilled in the art can also select other appropriate methods to install the front baffle 6 according to actual needs, so as to realize the detachable assembly of the front baffle 6 on the side baffle 2, which will not be described here.

[0034] In actual use, by adopting a detachable front end baffle 6, the operator can conveniently assemble the magnetic core 4 and the winding frame 5 combination. After the assembly is completed, the front end baffle 6 is installed to limit and fix the magnetic core 4 and the winding frame 5 combination, thereby reducing the difficulty of assembling the magnetic core 4 and the winding frame 5 combination.

[0035] Optionally, a wire groove 21 is provided on the front baffle plate 6, and the wire groove 21 includes a transverse section and a longitudinal section, and the longitudinal section has an opening at one end facing the rear baffle plate 9, and the other end is connected to the transverse section, and one end of the transverse section is connected to the longitudinal section, and the other end is provided with a groove portion 22 matching the shape of the wire. Exemplarily, the wire groove 21 is L-shaped, and multiple wire grooves 21 can be provided. Those skilled in the art can set them according to actual needs, and will not be repeated here.

[0036] In actual use, the terminal support seat 7 can be arranged corresponding to the bottom of the front end baffle 6, so that the lead can be limited by the wire groove 21 during assembly to prevent the lead from being scattered. By adopting the L-shaped wire groove 21, the lead extended from the LLC transformer can be fixed in the wire position by the wire groove 21. After the lead is extended into the transverse section of the wire groove 21, the groove portion 22 on the transverse section that matches the line shape can be used to further limit the lead to prevent the lead from moving out of the wire groove 21.

[0037] Optionally, the side baffle 2 is connected to the bracket body 1 through a reinforcing rib 14. Exemplarily, the side baffle 2 is integrally formed with the bracket body 1, wherein the reinforcing rib 14 is arranged at the connection between the side baffle 2 and the bracket body 1, and two, three or more reinforcing ribs 14 may be arranged at intervals, and each reinforcing rib 14 is fixed to the bracket body 1 at one end and fixed to the side baffle 2 at the other end. The provision of the reinforcing rib 14 is conducive to improving the structural strength of the connection between the side baffle 2 and the bracket body 1, thereby ensuring that the side baffle 2 can continuously and stably limit the magnetic core 4 and the winding skeleton 5.

[0038] Optionally, the side baffle 2 is provided with a bending portion 3 that cooperates with the magnetic core 4. Exemplarily, the bending portion 3 can be arranged above the side baffle 2, so that the side baffle 2 can better limit and fix the magnetic core 4 to prevent the magnetic core 4 from falling off from the fixing bracket.

[0039] In actual application, the side baffle 2 may also be provided with a bent portion 3 at one end thereof facing the rear end baffle 9, and at least two rear end baffles 9 may be provided corresponding to the side baffles 2, and the bent portions 3 at one end of the side baffle 2 facing the rear end baffle 9 are all connected to the corresponding rear end baffle 9. By connecting the bent portions 3 on the side baffle 2 with the rear end baffle 9 adjacent to the side baffle 2, a reinforced frame structure may be formed at the edge of the bracket body 1, which is beneficial to further improve the structural strength of the side baffle 2 and the rear end baffle 9, and is also beneficial to improve the stability of the overall structure of the fixed bracket.

[0040] Optionally, the bracket body 1 is provided with an assembly groove 11 for installing the terminal support seat 7, and the left and right sides of the bracket body 1 are provided with plug-in parts 12 corresponding to the assembly groove 11. Each of the plug-in parts 12 is provided with at least two plug-in grooves 13 at intervals, and each of the plug-in grooves 13 is connected to the assembly groove 11. The terminal support seat 7 is provided with an insertion block 17 that cooperates with the plug-in groove 13.

[0041] Exemplarily, two, three or more plug-in slots 13 may be arranged at intervals on the plug-in portion 12, and the plug-in block 17 is fixed on the terminal support seat 7, and the plug-in block 17 is arranged one-to-one with the plug-in slot 13. Those skilled in the art may also set the number of the plug-in slots 13 according to actual needs. By providing a plurality of plug-in slots 13, a toothed structure may be formed by using a plurality of plug-in slots 13 to cooperate with the plug-in block 17, which is beneficial to improving the stability of the terminal support seat 7 after installation on the bracket body 1, and is also beneficial to improving the structural strength of the connection between the terminal support seat 7 and the bracket body 1.

[0042] In actual application, the left and right sides of the terminal support seat 7 are further provided with mounting grooves 18 that cooperate with the plug-in portion 12. By providing the mounting grooves 18 that cooperate with the plug-in portion 12 on the left and right sides of the terminal support seat 7, the plug-in portion 12 can be installed in a hidden manner, which can not only further improve the structural strength and stability of the connection between the terminal support seat 7 and the bracket body 1, but also provide a good shielding and protection effect on the connection between the plug-in portion 12 and the plug-in block, thereby reducing the possibility of damage to the plug-in block or the plug-in portion 12 during the assembly process of the fixed bracket.

[0043] Optionally, a plurality of mounting holes 19 are arranged at intervals along the length direction of the terminal support seat 7, and a weight-reducing hole 20 is arranged at a position between two adjacent mounting holes 19 on the terminal support seat 7. Exemplarily, the weight-reducing hole 20 can be a triangular hole, and two weight-reducing holes 20 with opposite bottom surfaces are arranged between two adjacent mounting holes 19, so that the mass of the terminal support seat 7 can be reduced while ensuring the structural strength of the terminal support seat 7.

[0044] In actual application, heat dissipation holes can also be set on the bracket body 1 and the side baffle 2, which not only facilitates heat dissipation, but also helps to reduce the weight of the fixed bracket and facilitates the assembly and use of the fixed bracket.

[0045] Optionally, a protrusion 10 for supporting the magnetic core 4 is provided at a position corresponding to the magnetic core 4 on the bracket body 1. Exemplarily, the protrusion 10 can not only provide a better support for the magnetic core 4, but also enhance the structural strength of the bracket body 1 and prevent the bracket body 1 from deforming. The protrusions 10 can be arranged one by one with the magnetic core 4.

[0046] Optionally, one end of the protrusion 10 is connected to the rear baffle 9, and the other end is provided with a guiding inclined surface 15 for facilitating the assembly of the magnetic core 4. Exemplarily, the fixed connection between the protrusion 10 and the rear baffle 9 can also improve the overall structural stability of the fixed bracket. The guiding inclined surface 15 can play a good guiding role for the magnetic core 4, avoiding collision between the magnetic core 4 and the protrusion 10 during assembly.

[0047] Since the dimensional tolerance of plastic parts is easier to control within a smaller range than that of multiple magnetic cores 4 after bonding, and if the winding skeleton 5 is clamped by automatic equipment, the winding skeleton 5 cannot use fragile materials such as high thermal conductivity plastics, otherwise the winding skeleton 5 will be damaged during the clamping process. Therefore, it is easier to implement a solution for mechanical equipment to clamp the parts on the fixed bracket. Therefore, this embodiment provides conditions for the LLC transformer to be loaded into the vehicle charger through automated equipment by using the fixed bracket to carry the LLC transformer.

[0048] In actual application, by adopting this fixed bracket, the freedom of the LLC transformer is completely limited by the contact between the magnetic core 4 and the protrusion 10 on the bracket body 1, the side baffle 2, the bent portion 3 on the side baffle 2, the rear end baffle 9, and the protrusion 24 on the front end baffle 6. In addition to carrying the coil and contacting the magnetic core 4, the winding skeleton 5 does not contact with other parts, avoiding force, so it is not easy to be damaged, so that the winding skeleton 5 can use fragile materials such as high thermal conductivity plastics.

[0049] In addition, after assembly, the lead terminal 8 of the LLC transformer can be fixed by the terminal support seat 7, so that the LLC transformer can be completely confined in the fixed bracket. This is because the magnetic core 4 and other parts in the above-mentioned LLC transformer are finally assembled into a whole by using the fixed bracket, and the lead terminal 8 is installed in the terminal support seat 7, and the terminal support seat 7 is installed on the bracket body 1, so the position of the lead terminal 8 is fixed relative to the bracket body 1. Because the LLC transformer is installed in the fixed bracket, the magnetic core 4 and the winding skeleton 5 are both confined in the fixed bracket, and the amount of shaking is very small. It can be regarded that the external dimensions after assembly are basically fixed. The fixed size and installation position can realize the automatic clamping of the LLC transformer by the machine in the automated production and place it in the correct position, which is conducive to improving the degree of automated assembly of the LLC transformer.

[0050] In summary, by adopting this fixed bracket, the LLC transformer can be automatically clamped by machine equipment when the volume, shape and position are fixed, which is conducive to automated assembly.

[0051] The utility model discloses a LLC transformer fixing bracket for an on-board charger of an electric vehicle, which has the advantages of high structural stability and is easy to assemble and use. By adopting such a fixing bracket to carry the magnetic core and the winding skeleton, the plastic winding skeleton can be prevented from being subjected to stress during the assembly, transportation and use of the LLC transformer. The freedom of the LLC transformer is completely limited by the contact between the magnetic core and the protrusions on the bracket body, the side baffles, the bent portions on the side baffles, the rear baffles, and the protrusions on the front baffles. The winding skeleton does not contact other parts except for carrying the coil and contacting the magnetic core. All stress points are on the magnetic core and the fixing bracket, and the winding skeleton is not subjected to stress. Therefore, even if the winding skeleton is made of fragile materials such as high thermal conductivity plastic for heat dissipation, the winding skeleton is not easily damaged by stress during assembly and use, thereby improving the overall structural stability of the LLC transformer.

[0052] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An LLC transformer fixing bracket for an electric vehicle onboard charger, characterized in that: The invention comprises a support body (1), and a pair of side baffles (2) arranged on the left and right sides of the support body (1) correspondingly, wherein there is an accommodation gap between the two side baffles (2) for accommodating a magnetic core (4) and a winding frame (5), a rear end baffle (9) for limiting the magnetic core (4) is arranged at a position corresponding to the accommodation gap at one end of the support body (1), and a front end baffle (6) for limiting the magnetic core (4) is arranged at the other end, the front end baffle (6) is detachably mounted on the side baffle (2), and a protrusion (24) cooperating with the magnetic core (4) is arranged on the front end baffle (6) at a position corresponding to the magnetic core (4); a detachable terminal support seat (7) is arranged at a position corresponding to the front end baffle (6) on the support body (1), and a mounting hole (19) for mounting a lead terminal (8) is arranged on the terminal support seat (7).

2. The LLC transformer fixing bracket for an electric vehicle onboard charger according to claim 1 is characterized in that: The front end baffle (6) is provided with a wire groove (21), the wire groove (21) comprises a transverse section and a longitudinal section, one end of the longitudinal section facing the rear end baffle (9) is provided with an opening, and the other end is connected to the transverse section, one end of the transverse section is connected to the longitudinal section, and the other end is provided with a groove portion (22) matching the shape of the wire.

3. The LLC transformer fixing bracket for an electric vehicle onboard charger according to claim 1 is characterized in that: The side baffle (2) is connected to the bracket body (1) via a reinforcing rib (14); one end of the reinforcing rib (14) is connected to the side baffle (2) and the other end is connected to the bracket body (1).

4. The LLC transformer fixing bracket for an electric vehicle onboard charger according to claim 1 is characterized in that: The side baffle (2) is provided with a bending portion (3) that cooperates with the magnetic core (4).

5. The LLC transformer fixing bracket for an on-board charger of an electric vehicle according to claim 4, characterized in that: At least two of the rear end baffles (9) are provided corresponding to the side baffles (2), and the bent portions (3) on one end of the side baffles (2) facing the rear end baffle (9) are connected to the corresponding rear end baffles (9).

6. The LLC transformer fixing bracket for an electric vehicle onboard charger according to claim 1, characterized in that: The bracket body (1) is provided with an assembly groove (11) for mounting the terminal support seat (7); the bracket body (1) is provided with plug-in parts (12) at positions corresponding to the assembly groove (11) on the left and right sides; each of the plug-in parts (12) is provided with at least two plug-in grooves (13) at intervals; each of the plug-in grooves (13) is connected to the assembly groove (11); and the terminal support seat (7) is provided with an insert block (17) that matches the insert groove (13).

7. The LLC transformer fixing bracket for an on-board charger of an electric vehicle according to claim 6, characterized in that: The left and right sides of the terminal support seat (7) are also provided with mounting grooves (18) that match the plug-in portion (12).

8. The LLC transformer fixing bracket for an electric vehicle onboard charger according to claim 1, characterized in that: A plurality of mounting holes (19) are arranged at intervals along the length direction of the terminal support seat (7), and a weight-reducing hole (20) is provided on the terminal support seat (7) at a position corresponding to the position between two adjacent mounting holes (19).

9. The LLC transformer fixing bracket for an electric vehicle onboard charger according to claim 1, characterized in that: A protrusion (10) for supporting the magnetic core (4) is provided on the support body (1) at a position corresponding to the magnetic core (4).

10. The LLC transformer fixing bracket for an on-board charger of an electric vehicle according to claim 9, characterized in that: One end of the protruding portion (10) is connected to the rear end baffle (9), and the other end is provided with a guiding inclined surface (15) for facilitating the assembly of the magnetic core (4).

Images