OBC transformer support assembly

Abstract

The utility model discloses an OBC transformer support assembly, which relates to the technical field of transformers and comprises a transformer base, a support body fixedly mounted on the transformer base, a coil arranged in the support body, a transformer cover plate fixedly mounted at the upper end of the support body, and a temperature control switch fixedly mounted in the middle of the transformer cover plate. A wiring mechanism is arranged on the support body and comprises a binding post fixedly installed on the support body, a conductive contact is arranged below the binding post, a trigger mechanism is connected to the conductive contact, a metal gasket and a fixing nut are arranged on the binding post, a butt joint port is formed in the upper end of the conductive contact, and a wiring groove is formed in the bottom of the conductive contact. One side of the wiring groove is provided with a fixing screw. According to the OBC transformer support assembly, through cooperative use of the wiring mechanism and the triggering mechanism, operation of the transformer can be stopped immediately when the coil is in a high-temperature state, and the use safety of the transformer is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to transformer technical field, specifically a kind of OBC transformer support assembly. BACKGROUND

[0002] OBC charger, full name for vehicle-mounted charger, is one of the core components of electric vehicles, which is specially designed to convert alternating current (AC) provided by home or public charging station into direct current (DC) required by vehicle battery. OBC charger is very suitable for installation inside vehicle due to its small size and high integration. When users use, they only need to insert charging gun into charging port of vehicle and connect to external power supply, so that charging process can be easily started, and the whole operation process is simple and fast. The design of this charger takes into account the special needs of electric vehicles, which not only effectively converts alternating current into direct current, but also has excellent performance in conversion efficiency and safety. In addition, OBC charger usually has intelligent charging function, which can automatically adjust charging current and voltage according to battery status, so as to prolong the service life of battery and ensure the safety of charging process.

[0003] Inside the shell of OBC charger, a transformer, a key component, is specially designed. During actual operation, due to current conversion and energy transmission, a large amount of heat will inevitably be generated. High temperature may cause aging of coil insulation material, and even may cause safety accidents. If the transformer inside OBC charger shell cannot stop working in time under high temperature condition, it will face certain use risk. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing an OBC transformer support assembly to solve the problem of use risk of transformer under high temperature condition in prior art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: an OBC transformer support assembly, comprising a transformer base, a support body is fixedly installed on the transformer base, a coil is arranged in the support body, a transformer cover plate is fixedly installed on the upper end of the support body, a temperature control switch is fixedly installed at the middle position of the transformer cover plate, a wiring mechanism is arranged on the support body, the wiring mechanism comprises a wiring post fixedly installed on the support body, a conductive contact is arranged below the wiring post, and a triggering mechanism is connected to the conductive contact.

[0006] Preferably, a metal gasket and a fixing nut are arranged on the wiring post, a docking port is formed in the upper end of the conductive contact, a wiring slot is formed in the bottom of the conductive contact, and a fixing screw is arranged on one side of the wiring slot.

[0007] Preferably, a through hole is formed in the transformer cover plate, and a portion of the terminal post passes through the through hole and penetrates the transformer cover plate.

[0008] Preferably, the two ends of the coil are connected with the conductive contacts through the terminal slots, the two ends of the coil are fixed in the terminal slots through the fixing screws, the conductive contacts are aligned with the terminal posts, and the terminal posts are connected with the conductive contacts through the butt joints.

[0009] Preferably, the trigger mechanism comprises a positioning guide rod fixedly installed in the bracket body and an electromagnet, a reset spring is sleeved on the positioning guide rod, an insulating cross beam is movably installed on the positioning guide rod, a movable hole is formed in the insulating cross beam, positioning clamping grooves are formed at the two end edges of the insulating cross beam, and an armature block is fixedly installed at the middle position of the insulating cross beam and is aligned with the electromagnet in the up-down direction.

[0010] Preferably, a clamping groove is formed in the middle position of the insulating cross beam, and the armature block is installed at the middle position of the insulating cross beam through the clamping groove.

[0011] Preferably, the conductive contacts are installed on the insulating cross beam through the positioning clamping grooves, the conductive contacts are movably installed below the terminal posts through the insulating cross beam, the insulating cross beam is movably installed on the positioning guide rod through the movable hole, one end of the reset spring is fixedly installed at the top of the bracket body, and the other end of the reset spring is fixedly installed on the insulating cross beam.

[0012] Compared with the prior art, the utility model has the advantages that:

[0013] In the application, the temperature control switch can effectively control the starting of the electromagnet in the normal working temperature range. Once the electromagnet is activated, the magnetic force generated thereby will attract the armature block, causing the insulating cross beam to move upward along the positioning guide rod. With the upward movement of the insulating cross beam, the conductive contacts also move upward, and finally come into contact with the terminal posts, so that the current can pass through the coil to perform the transformer function.

[0014] In the application, when the working temperature of the electromagnet coil exceeds the set threshold value, the temperature control switch will be turned off, triggering the power-off mechanism of the electromagnet. After the electromagnet is powered off, the armature block thereof is released. The released armature block is reset under the action of the reset spring, and this action drives the insulating cross beam to move downward. The downward movement of the insulating cross beam in turn causes the conductive contacts to move close to each other, resulting in the separation of the conductive contacts from the terminal posts, so as to cut off the path of the current passing through the coil. This series of actions ensures that the transformer can stop running quickly when the temperature of the coil abnormally rises, effectively enhancing the safety performance of the transformer. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is a whole structure schematic view of the utility model;

[0016] Figure 2 It is a local structure schematic view of the utility model;

[0017] Figure 3 It is a wiring mechanism schematic view of the utility model;

[0018] Figure 4 It is a trigger mechanism schematic view of the utility model.

[0019] Marked number in drawing: 1, transformer base; 2, coil; 3, support body; 4, transformer cover plate; 5, temperature control switch; 6, wiring mechanism; 601, wiring post; 602, fixed nut; 603, metal gasket; 604, conductive contact; 605, wiring slot; 606, fixed screw; 607, butt joint; 7, trigger mechanism; 701, positioning slot; 702, insulating crossbeam; 703, positioning guide rod; 704, reset spring; 705, electromagnet; 706, movable hole; 707, armature block. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0021] As shown in Figure 1 and Figure 2 The utility model provides a kind of technical scheme of OBC transformer support assembly, including transformer base 1, transformer base 1 is fixedly installed with support body 3, coil 2 is equipped in support body 3, transformer cover plate 4 is fixedly installed on the upper end of support body 3, temperature control switch 5 is fixedly installed in the middle position of transformer cover plate 4, wiring mechanism 6 is equipped on support body 3, conductive contact 604 is connected with trigger mechanism 7, by the cooperation of wiring mechanism 6 and trigger mechanism 7, transformer can be stopped immediately when coil 2 is in high temperature state, improve the security of transformer use.

[0022] As shown in Figure 2 and Figure 3As shown, the wiring mechanism 6 includes a wiring post 601 fixedly installed on the support body 3, a conductive contact 604 arranged below the wiring post 601, a metal gasket 603 and a fixing nut 602 arranged on the wiring post 601, a mating interface 607 arranged at the upper end of the conductive contact 604, a wiring slot 605 arranged at the bottom of the conductive contact 604, a fixing screw 606 arranged at one side of the wiring slot 605, a through hole arranged on the transformer cover plate 4, and a part of the wiring post 601 passing through the transformer cover plate 4 through the through hole. The two ends of the coil 2 are connected with the conductive contact 604 through the wiring slot 605.

[0023] Specifically, when the coil 2 is in the normal working temperature range, the temperature control switch 5 can effectively perform its function, i.e., controlling the activation of the electromagnet 705. Once the electromagnet 705 is activated, it will generate a magnetic force to attract and fix the armature block 707. With the armature block 707 being attracted, the insulating cross beam 702 will start to move upward along the positioning guide rod 703. This process is smooth and orderly, and the insulating cross beam 702 will synchronously drive the conductive contact 604 to move upward in the process of upward movement. The upward movement of the conductive contact 604 enables it to form contact with the wiring post 601, thereby allowing the current to smoothly pass through the coil 2.

[0024] As shown in Figure 2 and Figure 4 , the triggering mechanism 7 includes a positioning guide rod 703 and an electromagnet 705 fixedly installed in the support body 3, a reset spring 704 sleeved on the positioning guide rod 703, an insulating cross beam 702 movably installed on the positioning guide rod 703, a movable hole 706 arranged on the insulating cross beam 702, a positioning clamping groove 701 arranged at the two end edges of the insulating cross beam 702, an armature block 707 fixedly installed at the middle position of the insulating cross beam 702, and the armature block 707 being vertically aligned with the electromagnet 705, a clamping groove arranged at the middle position of the insulating cross beam 702, and the armature block 707 being installed at the middle position of the insulating cross beam 702 through the clamping groove.

[0025] Specifically, when the operating temperature of the coil 2 reaches an unsafe high temperature level, the temperature control switch 5 can control the electromagnet 705 to be immediately closed. After the electromagnet 705 is closed, the magnetic force generated by the electromagnet 705 disappears, which causes the armature block 707 to be released. Once the armature block 707 is released, it is pushed by the reset spring 704 to start the reset action. During the reset process of the reset spring 704, the insulating cross beam 702 is pushed to move downward. With the downward movement of the insulating cross beam 702, the conductive contact 604 is moved downward, so that the conductive contact 604 is separated from the terminal post 601, thereby cutting off the current flow path. In this way, the current cannot continue to pass through the coil 2, which effectively prevents the transformer from continuing to operate. Such a design ensures that when the coil 2 is in an overheated state, the transformer can be quickly stopped, thereby greatly improving the safety of the transformer in use and avoiding equipment damage or safety accidents that may be caused by overheating.

[0026] Working principle: When in use, the external wire is fixed on the terminal post 601 through the fixing nut 602, the temperature control switch 5 can control the electromagnet 705 according to the temperature of the coil 2, when the operating temperature of the coil 2 is normal, the temperature control switch 5 can control the electromagnet 705 to start, after the electromagnet 705 starts, it will attract the armature block 707, causing the insulating cross beam 702 to move upward along the positioning guide rod 703, when the insulating cross beam 702 moves upward along the positioning guide rod 703, it will drive the conductive contact 604 to move upward, so that the conductive contact 604 contacts the terminal post 601, allowing the current to pass through the coil 2 to perform the transformer function, when the operating temperature of the coil 2 is too high, the temperature control switch 5 can control the electromagnet 705 to be closed, after the electromagnet 705 is closed, it will release the armature block 707, after the armature block 707 is released, the reset spring 704 will be reset, during the reset process of the reset spring 704, it will drive the insulating cross beam 702 to move downward, after the insulating cross beam 702 moves downward, it will drive the conductive contact 604 to move towards each other, so that the conductive contact 604 is separated from the terminal post 601, preventing the current from passing through the coil 2, thereby immediately stopping the operation of the transformer when the coil 2 is in a high temperature state, improving the safety of the transformer in use.

[0027] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, and the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application. Any reference signs in the claims should not be regarded as limiting the claims involved.

Claims

1. An OBC transformer bracket assembly, comprising a transformer base (1), a bracket body (3) fixedly mounted on the transformer base (1), a coil (2) disposed inside the bracket body (3), and a transformer cover plate (4) fixedly mounted on the upper end of the bracket body (3), characterized in that: A temperature control switch (5) is fixedly installed in the middle of the transformer cover plate (4). A wiring mechanism (6) is provided on the bracket body (3). The wiring mechanism (6) includes a terminal block (601) fixedly installed on the bracket body (3). A conductive contact (604) is provided below the terminal block (601). A triggering mechanism (7) is connected to the conductive contact (604).

2. The OBC transformer bracket assembly according to claim 1, characterized in that: The terminal block (601) is provided with a metal washer (603) and a fixing nut (602). The upper end of the conductive contact (604) is provided with a mating interface (607). The bottom of the conductive contact (604) is provided with a wiring groove (605). A fixing screw (606) is provided on one side of the wiring groove (605).

3. The OBC transformer bracket assembly according to claim 2, characterized in that: The transformer cover plate (4) has a through hole, and part of the terminal (601) passes through the transformer cover plate (4) through the through hole.

4. The OBC transformer bracket assembly according to claim 3, characterized in that: Both ends of the coil (2) are connected to the conductive contact (604) through the wiring groove (605). Both ends of the coil (2) are fixed in the wiring groove (605) by the fixing screw (606). The conductive contact (604) is aligned with the terminal (601). The terminal (601) is connected to the conductive contact (604) through the interface (607).

5. An OBC transformer support assembly according to claim 4, characterized in that: The triggering mechanism (7) includes a positioning guide rod (703) and an electromagnet (705) fixedly installed in the bracket body (3). A reset spring (704) is sleeved on the positioning guide rod (703). An insulating crossbeam (702) is movably installed on the positioning guide rod (703). An movable hole (706) is opened on the insulating crossbeam (702). Positioning slots (701) are opened at both ends of the insulating crossbeam (702). An armature block (707) is fixedly installed in the middle of the insulating crossbeam (702), and the armature block (707) is aligned vertically with the electromagnet (705).

6. An OBC transformer support assembly according to claim 5, characterized in that: A slot is provided in the middle of the insulating crossbeam (702), and the armature block (707) is installed in the middle of the insulating crossbeam (702) through the slot.

7. An OBC transformer bracket assembly according to claim 6, characterized in that: The conductive contact (604) is mounted on the insulating crossbeam (702) through the positioning slot (701). The conductive contact (604) is movably mounted below the terminal block (601) through the insulating crossbeam (702). The insulating crossbeam (702) is movably mounted on the positioning guide rod (703) through the movable hole (706). One end of the reset spring (704) is fixedly mounted on the top of the bracket body (3), and the other end of the reset spring (704) is fixedly mounted on the insulating crossbeam (702).

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