Detachable BMU fixing device

Abstract

The utility model provides a detachable BMU fixing device, which comprises a fixing main board, a BMU main body, an auxiliary component, a fixing assembly, ventilation ports, heat dissipation grooves, damping spring columns and a back board, the bottom of the fixing main board is provided with two symmetrical ventilation ports, and the middle of the side surface of the fixing main board is also provided with a plurality of heat dissipation grooves. A plurality of damping spring columns are arranged at the upper position and the lower position of the heat dissipation groove, a back plate behind the BMU body is connected with the fixing main plate through a fixing assembly, the bottom of the BMU body is connected with an auxiliary component, the auxiliary component is installed at the bottom of the fixing main plate, the auxiliary component comprises a bottom supporting frame, an auxiliary box, a wire arrangement groove and a wire winding rod, and the bottom supporting frame is fixedly installed on the top face of the auxiliary box. The BMU is reasonable in structure and easy to operate, fixed connection of the BMU can be enhanced, the heat dissipation performance is improved, meanwhile, the damping effect can be achieved, and disassembly and assembly are convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to a detachable BMU fixing device and belongs to the technical field of fixing devices. BACKGROUND

[0002] BMU is a battery management unit with multiple functions, including voltage monitoring, current monitoring, temperature monitoring, insulation monitoring and relay state monitoring. It can detect the voltage of all single batteries in the battery pack, the total current of the battery pack, the total voltage, the environmental temperature and other parameters in real time.

[0003] As a battery management unit, BMU can be installed in a vehicle for managing the vehicle battery. However, the vehicle may shake during driving. The general BMU is only fixed by bolts and connecting pieces. Long-term shaking may cause the bolts at the connecting part to loosen, resulting in the BMU not working normally. In addition, long-term work of the BMU may cause heating. Therefore, it is necessary to improve the heat dissipation of the BMU fixing piece to ensure that the performance of the BMU does not decrease. Therefore, there is an urgent need for a detachable BMU fixing device to solve the above problems. UTILITY MODEL CONTENTS

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a detachable BMU fixing device to solve the problems raised in the background art. The utility model has a reasonable structure and is easy to operate. It not only can strengthen the fixed connection of the BMU and improve the heat dissipation, but also has a shock absorption effect and is convenient to disassemble and assemble.

[0005] In order to achieve the above-mentioned purpose, the utility model is implemented by the following technical scheme: a detachable BMU fixing device, comprising a fixed main plate, a BMU main body, an auxiliary component, a fixing assembly, a ventilation opening, a heat dissipation groove, a shock absorbing spring column and a back plate, the fixed main plate is provided with two symmetrical ventilation openings at the bottom, and a plurality of heat dissipation grooves are arranged on the side surface of the fixed main plate, a plurality of shock absorbing spring columns are arranged at the upper and lower positions of the heat dissipation groove, the back plate behind the BMU main body is connected with the fixed main plate through the fixing assembly, and the auxiliary component is connected to the bottom of the BMU main body, the auxiliary component is installed at the bottom of the fixed main plate, wherein the auxiliary component comprises a bottom supporting frame, an auxiliary box, a wire arranging groove and a wire winding rod, the bottom supporting frame is fixedly installed on the top surface of the auxiliary box, and the auxiliary box is assembled on the fixed main plate, the auxiliary box is provided with a wire arranging groove on the left and right sides, and a plurality of wire winding rods are arranged in the wire arranging groove, the fixing assembly comprises a fixed buckle plate, a sleeve, a rubber plate, a fixed column, a bidirectional spring and a connecting roller, one side of the fixed buckle plate is fixed with the sleeve, and the sleeve is sleeved on the connecting roller in the fixed column, the fixed column is connected and fixed on the surface of the fixed main plate, and a plurality of bidirectional springs are arranged in the connecting roller in the fixed column.

[0006] Further, the sleeve inner diameter size is matched with the size of the plurality of bidirectional springs on the connecting roller.

[0007] Further, the front end position of the fixed buckle plate is additionally provided with a rubber material rubber plate.

[0008] Further, the plurality of winding rods arranged in the wire arranging groove are symmetrically staggered.

[0009] Further, the plurality of damping spring columns are connected together with the back plate behind the BMU main body in a welding manner.

[0010] Further, the plurality of heat dissipation grooves on the fixed main plate are all provided with dust separation nets.

[0011] The beneficial effects of the utility model are as follows: the utility model relates to a detachable BMU fixing device, which is provided with a heat dissipation groove, a damping spring column, a bottom supporting frame, a fixed buckle plate, a sleeve, a rubber plate and a bidirectional spring, the heat dissipation groove and the air vent are arranged, the heat dissipation mode in different directions greatly improves the heat dissipation property of the BMU main body, the plurality of damping spring columns help to reduce the shaking degree of the vehicle during driving, and good damping effect is achieved, the bidirectional spring is connected with the sleeve, which helps to automatically reset the bidirectional spring when the fixed buckle plate is moved, and personnel can conveniently disassemble and assemble the BMU main body. BRIEF DESCRIPTION OF DRAWINGS

[0012] Other features, objects and advantages of the utility model will become more apparent through reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0013] Figure 1 It is a whole structure schematic view of the utility model detachable BMU fixing device;

[0014] Figure 2 It is a split structure schematic view of the utility model detachable BMU fixing device;

[0015] Figure 3 It is an auxiliary component structure schematic view of the utility model detachable BMU fixing device;

[0016] Figure 4 It is a fixed assembly structure schematic view of the utility model detachable BMU fixing device;

[0017] In the drawing: 1, fixed main plate, 2, BMU main body, 3, auxiliary component, 4, fixed assembly, 5, air vent, 6, heat dissipation groove, 7, damping spring column, 8, back plate, 31, bottom supporting frame, 32, auxiliary box, 33, wire arranging groove, 34, winding rod, 41, fixed buckle plate, 42, sleeve, 43, rubber plate, 44, fixed column, 45, bidirectional spring, 46, connecting roller. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the utility model is further described below in combination with specific embodiments.

[0019] Please refer to Figures 1-4 The utility model provides a kind of detachable BMU fixing device, including fixed mainboard 1, BMU main body 2, auxiliary component 3, fixed assembly 4, air passage 5, heat dissipation groove 6, damping spring column 7 and backplate 8, fixed mainboard 1 bottom is equipped with the air passage 5 of two symmetries, and fixed mainboard 1 side middle is also provided with multiple heat dissipation grooves 6, heat dissipation groove 6 upper and lower position is provided with multiple damping spring columns 7, backplate 8 after BMU main body 2 is connected together with fixed mainboard 1 by fixed assembly 4, and BMU main body 2 bottom connects auxiliary component 3, auxiliary component 3 is installed in fixed mainboard 1 bottom, wherein auxiliary component 3 includes bottom support frame 31, auxiliary box 32, wire slot 33 and winding rod 34, bottom support frame 31 is fixedly installed on the top surface of auxiliary box 32, and auxiliary box 32 is assembled on fixed mainboard 1, auxiliary box 32 left and right sides are equipped with wire slot 33, and multiple winding rods 34 are arranged in wire slot 33, fixed assembly 4 includes fixed buckle plate 41, sleeve 42, rubber plate 43, fixed column 44, bidirectional spring 45 and connecting roller 46, one side of fixed buckle plate 41 is fixed with sleeve 42, and sleeve 42 is sleeved on connecting roller 46 in fixed column 44, fixed column 44 is connected and fixed on the surface of fixed mainboard 1, and multiple bidirectional springs 45 are arranged in connecting roller 46 in fixed column 44.

[0020] As the first embodiment of the utility model: multiple heat dissipation grooves 6 on fixed mainboard 1 are all provided with dust screen, this design is provided with heat dissipation groove 6 and air passage 5, and the heat dissipation of BMU main body 2 is greatly improved by using heat dissipation mode in different directions, and the dust screen on heat dissipation groove 6 can effectively intercept dust and impurities, multiple damping spring columns 7 are all connected together with backplate 8 after BMU main body 2 by welding, this design helps to reduce the shaking degree in vehicle driving by multiple damping spring columns 7, and plays a good damping role, multiple winding rods 34 arranged in wire slot 33 are all symmetrically staggered, this design can place some cables in BMU main body 2 in wire slot 33, and rubber material rubber plate 43 is additionally added to the front end position of fixed buckle plate 41, this design adds rubber plate 43, which helps to enhance the friction force when fixed buckle plate 41 buckles backplate 8, and improve the stability during fixing, the inner diameter size of sleeve 42 is matched with the size of multiple bidirectional springs 45 on connecting roller 46, this design uses bidirectional spring 45 to connect sleeve 42, which helps to reset bidirectional spring 45 when fixed buckle plate 41 is moved, and facilitates personnel to disassemble and assemble BMU main body 2.

[0021] As the second embodiment of the utility model: the backboard 8 on the BMU main body 2 is fixed to the side surface of the fixed plate 1, so that the backboard 8 on the BMU main body 2 is connected with multiple shock absorbing spring columns 7, and the bottom of the backboard 8 is placed on the bottom support frame 31 on the auxiliary box 32, the bottom support frame 31 supports the bottom of the backboard 8, the fixed buckle plate 41 on both sides of the fixed plate 1 is elastically acted by the bidirectional spring 45 because the sleeve 42 connected therewith is sleeved on the fixed column 44 with the bidirectional spring 45, so the fixed buckle plate 41 tightly buckles the backboard 8 on the BMU main body 2, guarantees the connection between the BMU main body 2 and the fixed plate 1, the wire slot 33 on the auxiliary box 32 arranges the cable on the BMU main body 2, avoids winding, when the BMU main body 2 installed on the fixed plate 1 needs to be cooled, multiple cooling grooves 6 on the fixed plate 1 and the air vent 5 on the bottom all provide cooling effect.

[0022] The basic principle and main features of the utility model and the advantages of the utility model are shown and described above, for those skilled in the art, obviously, the utility model is not limited to the details of the above exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic features of the utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims rather than the above description, therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the claims involved.

[0023] In addition, it should be understood that although the present specification is described in terms of embodiments, not every embodiment contains only one independent technical solution, and the description manner of the specification is only for the sake of clarity, those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be properly combined to form other embodiments that those skilled in the art can understand.

Claims

1. A detachable BMU fixing device, comprising a fixing motherboard (1), a BMU body (2), auxiliary components (3), a fixing assembly (4), a vent (5), a heat dissipation groove (6), a shock-absorbing spring column (7), and a back plate (8), characterized in that, The fixed motherboard (1) has two symmetrical ventilation holes (5) at the bottom, and multiple heat dissipation slots (6) are provided in the middle of the side of the fixed motherboard (1). Multiple shock-absorbing spring columns (7) are provided at the top and bottom of the heat dissipation slots (6). The back plate (8) of the BMU body (2) is connected to the fixed motherboard (1) through the fixing component (4). The bottom of the BMU body (2) is connected to the auxiliary component (3). The auxiliary component (3) is installed at the bottom of the fixed motherboard (1). The auxiliary component (3) includes a base bracket (31), an auxiliary box (32), a cable tray (33), and a winding rod (34). The base bracket (31) is fixedly installed on the top surface of the auxiliary box (32). The auxiliary box (32) is assembled on the fixed motherboard (1). Cable trays (33) are provided on the left and right sides of the auxiliary box (32). Multiple winding rods (34) are arranged in the cable trays (33). The fixing component (4) includes a fixing plate (41), a sleeve (42), a rubber plate (43), a fixing post (44), a bidirectional spring (45), and a connecting roller (46). One side of the fixing plate (41) is fixed to the sleeve (42), and the sleeve (42) is sleeved on the connecting roller (46) in the fixing post (44). The fixing post (44) is connected and fixed to the surface of the fixing main plate (1), and multiple bidirectional springs (45) are provided in the connecting roller (46) in the fixing post (44).

2. The detachable BMU fixing device according to claim 1, characterized in that: Dust filters are provided in the multiple heat sinks (6) on the fixed motherboard (1).

3. The detachable BMU fixing device according to claim 1, characterized in that: The multiple shock-absorbing spring columns (7) are all connected to the back plate (8) behind the BMU body (2) by welding.

4. The detachable BMU fixing device according to claim 1, characterized in that: The multiple winding rods (34) arranged in the wiring groove (33) are all symmetrically staggered.

5. A detachable BMU fixing device according to claim 1, characterized in that: A rubber plate (43) is also added to the front end of the fixing plate (41).

6. A detachable BMU fixing device according to claim 1, characterized in that: The inner diameter of the sleeve (42) is matched with the size of the multiple bidirectional springs (45) on the connecting roller (46).

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