Electrode terminal fixing seat, electrode terminal connecting structure and vehicle-mounted charger

Abstract

The utility model belongs to the technical field of vehicle-mounted chargers, and discloses an electrode terminal fixing seat, an electrode terminal connecting structure and a vehicle-mounted charger, and the corresponding electrode terminal connecting structure and the vehicle-mounted charger are obtained based on the electrode terminal fixing seat. The electrode terminal fixing seat comprises a seat body, and the top of the seat body is provided with a threaded connection hole and a positioning clamping groove. The threaded connection hole is used for threaded connection with a threaded fastener; the positioning clamping groove is used for clamping a clamping block on the electrode terminal and enabling a threaded fastener through hole of the electrode terminal to be coaxial with the threaded connection hole; a positioning structure is arranged at the bottom of the seat body and used for being coaxially connected with a positioning part of an assembling component, and the positioning part of the assembling component is coaxial with a threaded fastener through hole in the circuit board. According to the utility model, not only can an auxiliary centering effect be provided for the electrode terminal and the circuit board on an automatic production line, but also the electrode terminal fixing seat is still kept on the circuit board after the assembly on the production line is completed, and the effects of preventing the electrode terminal from loosening and supporting the circuit board are continuously achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of on-vehicle chargers, and particularly relates to an electrode terminal fixing seat, an electrode terminal connection structure and an on-vehicle charger. Background Art

[0002] The electrode terminal needs to be connected to a circuit board (such as a PCB) through bolts. When manually connecting, the electrode terminal can be pressed by hand to assist the alignment of the bolt holes on the electrode terminal and the bolt holes on the circuit board. However, with the improvement of the automation level, there is an urgent need for a device that can assist in aligning the electrode terminals on the automatic production line. Summary of the Utility Model

[0003] In order to meet the needs of automated production, on the one hand, the utility model provides an electrode terminal fixing seat, comprising:

[0004] A seat body, on the top of which there are a threaded connection hole and a positioning slot;

[0005] The threaded connection hole is used for threaded connection with a threaded fastener;

[0006] The positioning slot is used for clamping a block on the electrode terminal and making the threaded fastener through hole on the electrode terminal coaxial with the threaded connection hole;

[0007] At the bottom of the seat body, there is a positioning structure coaxial with the threaded connection hole, and the positioning structure is used for coaxially connecting the positioning part of the assembly member, and the positioning part of the assembly member is coaxial with the threaded fastener through hole on the circuit board.

[0008] The circuit board needs to be fixedly installed on a chassis, a water-cooling plate or other assembly members. In the automatic production line, positioning plug-in connectors are respectively provided to position the circuit board, the chassis, the water-cooling plate or other assembly members. After separate positioning, the hole positions on the circuit board can be aligned with the hole positions on the chassis, the water-cooling plate or other assembly members.

[0009] In the utility model, the positioning structure at the bottom of the seat body is used to connect the electrode terminal fixing seat to the positioning part of the chassis, the water-cooling plate or other assembly members. Those skilled in the art can ensure the alignment of the positioning part and the threaded fastener through hole on the circuit board through relevant dimension design. Then the positioning structure can be aligned with the threaded fastener through hole on the circuit board. Since the positioning structure is coaxial with the threaded connection hole at the top of the seat body, the threaded connection hole at the top of the seat body can be aligned with the threaded fastener through hole on the circuit board. Combined with the positioning effect of the positioning slot at the top of the seat body on the electrode terminal, it can ensure that the threaded fastener through hole on the electrode terminal is aligned with the threaded fastener through hole on the circuit board, thus replacing manual auxiliary positioning and meeting the needs of automated production.

[0010] Further, the positioning structure is a positioning jack or a positioning pin.

[0011] Further, the positioning structure is a positioning jack; the threaded connection hole communicates with the positioning jack to form a stepped hole, and the diameter of the threaded connection hole is larger than that of the positioning jack.

[0012] The threaded connection hole communicates with the positioning jack, which is convenient for processing to ensure that the threaded connection hole and the positioning jack are coaxial, and the stepped hole is more convenient for accommodating the nut.

[0013] Further, at least two of the positioning slots are provided on the upper surface of the seat body.

[0014] The tail of the electrode terminal is usually connected with a cable. After the cable is disturbed, it will drive the electrode terminal to rotate. The two positioning slots not only play a role in positioning the electrode terminal, but also play a role in preventing the electrode terminal from rotating.

[0015] Further, the positioning slots are symmetrically distributed on both sides of the threaded connection hole. It is convenient to adapt to commercially available electrode terminals.

[0016] Further, an anti-warping slot for fixing the tail of the electrode terminal is also provided on the top of the seat body. The anti-warping slot prevents the positioning accuracy from decreasing after the electrode terminal warps up.

[0017] Furthermore, the anti-warping slot includes two blocks; the block has a vertical wall protruding from the top of the seat body, and the upper end of the vertical wall has a bent portion; the two blocks are arranged at intervals relative to each other to form a slot, and a pressing gap for pressing the tail of the electrode terminal is formed between the bent portions.

[0018] Press the tail of the electrode terminal into the slot from the pressing gap, and snap the block of the electrode terminal into the positioning slot. The action directions of the two are the same, which is convenient for integrated operation.

[0019] Furthermore, the included angle between the bent portion and the vertical wall is 90°. It is convenient to press the tail of the electrode terminal and can press the tail of the electrode terminal more tightly.

[0020] Further, a metal nut is fixedly connected in the threaded connection hole, and the metal nut is coaxial with the threaded connection hole.

[0021] Compared with directly providing internal threads in the threaded connection hole, the metal nut has higher strength, can withstand greater torque, and has higher connection strength.

[0022] Further, the bottom of the seat body is cylindrical, and the top of the seat body is flat.

[0023] The cylindrical bottom can reduce the material consumption and the occupied space, and the flat top can better support the circuit board.

[0024] Further, the seat body is made of plastic to meet the insulation requirement.

[0025] Further, there are two seat bodies arranged side by side to meet the requirement of connecting the positive and negative electrode terminals simultaneously.

[0026] Further, an insulating partition strip for isolating the two electrode terminals is provided between the two seat bodies. By providing the insulating partition strip, it is possible to prevent the positive and negative electrode terminals from contacting and causing a short circuit in the circuit.

[0027] A connection structure for electrode terminals is also provided, which includes a circuit board and electrode terminals. The electrode terminals are fixed on the above-mentioned electrode terminal fixing seat to form an assembly, and the circuit board is connected to the assembly through a threaded fastener.

[0028] Further, the assembly is arranged on the lower surface of the circuit board, and the threaded fastener sequentially passes through the circuit board, the electrode terminal and the electrode terminal fixing seat. This facilitates the automatic tightening of the threaded fastener through the electrode terminal fixing seat on the automatic production line.

[0029] A vehicle-mounted charger is also provided, which includes the above-mentioned connection structure for electrode terminals.

[0030] Further, an assembly member is also included. The assembly member is provided with a positioning portion, and the positioning portion is connected in a mating manner with the positioning structure of the assembly.

[0031] Further, the assembly member is a housing or a water-cooled plate.

[0032] The electrode terminal fixing seat provided by the present utility model can not only provide an auxiliary centering function for the electrode terminals and the circuit board on the automatic production line, but also remain on the circuit board after the assembly on the production line is completed, and continue to play a role in preventing the electrode terminals from loosening and supporting the circuit board. Description of the Drawings

[0033] In order to more clearly illustrate the specific embodiments of the present application or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0034] Figure 1 It is a schematic diagram of the connection structure between the electrode terminal and the circuit board in the prior art;

[0035] Figure 2 It is a schematic diagram of the connection structure between the electrode terminal and the circuit board in this specific embodiment;

[0036] Figure 3 It is a schematic diagram of the connection structure between the electrode terminal and the electrode terminal fixing seat in Embodiment 1;

[0037] Figure 4 is Figure 3 bottom view of

[0038] Figure 5 It is a schematic diagram of the stepped hole structure formed by the through connection of the threaded connection hole and the positioning jack in Embodiment 2. Specific embodiments

[0039] Refer to Figure 1 As shown, in the prior art, the electrode terminal 2 is connected to the circuit board 3 through the bolt 4. By manually pressing the electrode terminal to assist the alignment of the bolt hole on the electrode terminal and the bolt hole on the circuit board, and then locking with the nut 5.

[0040] In order to meet the needs of automated production and get rid of the dependence on manual assistance, the present utility model provides an electrode terminal fixing seat. Refer to Figure 2 As shown, the electrode terminal fixing seat 1 provided by the present utility model can not only provide an auxiliary alignment function for the electrode terminal 2 and the circuit board 3 on the automated production line, but also after the assembly on the production line is completed, the electrode terminal fixing seat 1 can still be retained on the circuit board 3 through the bolt 4, and continue to play the role of preventing the electrode terminal 2 from loosening and supporting the circuit board.

[0041] Embodiment 1

[0042] Refer to Figure 3 and Figure 4 As shown, this embodiment provides an electrode terminal fixing seat including a seat body. The top 101 of the seat body is provided with a threaded connection hole 10101 and a positioning slot (blocked by the block 201 of the electrode terminal 2 in the figure); the threaded connection hole 10101 is used for threadedly connecting a threaded fastener; the positioning slot is used for clamping the block 201 on the electrode terminal 2 and making the threaded fastener through hole of the electrode terminal 2 coaxial with the threaded connection hole 10101; the bottom 102 of the seat body is provided with a positioning jack 10201, and the positioning jack 10201 is coaxial with the threaded connection hole 10101.

[0043] It should be noted that the threaded fastener can be a bolt, a screw or a stud, etc. The positioning jack can also be replaced with a positioning structure such as a positioning pin or a positioning block.

[0044] In this embodiment, the threaded fastener is a screw, and an internal thread is provided on the hole wall of the threaded connection hole 10101 to connect the screw. In order to ensure the strength of the threaded connection, the seat body is made of metal, and at the same time, the outer surface of the seat body is wrapped with an insulating material, such as dip coating.

[0045] The circuit board needs to be fixedly installed on the chassis, the water-cooling plate or other assembly components. In an automated production line, positioning connectors are respectively provided to position the circuit board, the chassis, the water-cooling plate or other assembly components. After separate positioning, the hole positions on the circuit board can be aligned with the hole positions on the chassis, the water-cooling plate or other assembly components.

[0046] The positioning socket 10201 at the bottom 102 of the seat body is used to connect the electrode terminal fixing seat to the positioning connector of the chassis, the water-cooling plate or other assembly components. Those skilled in the art can ensure that the positioning connector is aligned with the threaded fastener through-hole of the circuit board through relevant dimension design. Then, the positioning socket 10201 can be aligned with the threaded fastener through-hole of the circuit board. Since the positioning socket 10201 and the threaded connection hole 10101 at the top 101 of the seat body are coaxial, the threaded connection hole 10101 at the top 101 of the seat body can be aligned with the threaded fastener through-hole of the circuit board. Combined with the positioning function of the positioning slot at the top 101 of the seat body for the electrode terminal 2, it can ensure that the threaded fastener through-hole of the electrode terminal 2 is aligned with the threaded fastener through-hole of the circuit board, thus replacing manual auxiliary positioning and meeting the needs of automated production.

[0047] Preferably, at least two of the above-mentioned positioning slots are provided on the upper surface of the seat body. The tail of the electrode terminal 2 is usually connected with a cable. After the cable is disturbed, it will drive the electrode terminal 2 to rotate. The two positioning slots not only play a positioning role for the electrode terminal 2, but also play a role in preventing the electrode terminal 2 from rotating.

[0048] Preferably, the positioning slots are symmetrically distributed on both sides of the threaded connection hole 10101. It is convenient to adapt to commercially available electrode terminals 2.

[0049] Preferably, an anti-warping slot 10102 for fixing the tail of the electrode terminal 2 is further provided on the top 101 of the seat body. The anti-warping slot 10102 is used to prevent the positioning accuracy from decreasing after the electrode terminal 2 warps up.

[0050] Preferably, the anti-warping slot 10102 includes two blocks; the blocks have vertical walls 101021 protruding from the top 101 of the seat body, and the upper ends of the vertical walls 101021 have bending parts 101022; the two blocks are arranged at intervals relatively to form a slot, and a pressing gap for pressing the tail of the electrode terminal 2 is formed between the bending parts 101022.

[0051] Press the tail of the electrode terminal 2 into the slot from the pressing gap, and snap the blocks 201 of the electrode terminal 2 into the positioning slot. The action directions of the two are the same, which is convenient for integrated operation.

[0052] Preferably, the included angle between the bent portion 101022 and the vertical wall 101021 is 90°. This is convenient for pressing the tail of the electrode terminal 2 and can more tightly press the tail of the electrode terminal 2.

[0053] Preferably, the bottom 102 of the seat body is cylindrical, and the top 101 of the seat body is flat. The cylindrical bottom can reduce the material consumption and the occupied space, and the flat top can better support the circuit board.

[0054] Preferably, there are two seat bodies arranged side by side. This meets the need to connect the positive and negative electrode terminals simultaneously.

[0055] Preferably, an insulating partition strip 10103 for isolating the two electrode terminals 2 is provided between the two seat bodies. By providing the insulating partition strip 10103, it is possible to prevent the positive and negative electrode terminals from contacting and causing a short circuit in the circuit.

[0056] Embodiment 2

[0057] The difference between this embodiment and Embodiment 1 is that: in this embodiment, the threaded fastener is a bolt, and the seat body is made of plastic. However, in order to meet the reliability of the threaded connection, a metal nut is fixedly connected in the threaded connection hole 10101, and the metal nut is coaxial with the threaded connection hole 10101.

[0058] Compared with directly providing internal threads in the threaded connection hole 10101 of the plastic base, the metal nut has higher strength, can withstand greater torque, and has higher connection strength.

[0059] Reference Figure 5 As shown, the threaded connection hole 10101 communicates with the positioning jack 10201 to form a stepped hole, and the diameter of the threaded connection hole is larger than that of the positioning jack 10201. The threaded connection hole 10101 communicates with the positioning jack 10201, which is convenient for processing to ensure that the threaded connection hole 10101 and the positioning jack 10201 are coaxial, and the stepped hole is more convenient for accommodating the nut.

[0060] Embodiment 3

[0061] This embodiment provides an electrode terminal connection structure, including a circuit board and an electrode terminal. The electrode terminal is fixed on the electrode terminal fixing seat of Embodiment 1 or Embodiment 2 to form an assembly, and the circuit board is connected to the assembly through a threaded fastener.

[0062] The assembly is arranged on the lower surface of the circuit board, and the threaded fastener sequentially passes through the circuit board, the electrode terminal, and the electrode terminal fixing seat. This is convenient for automatically tightening the threaded fastener through the electrode terminal fixing seat on the automatic production line.

[0063] This embodiment also provides an on-vehicle charger, which includes the electrode terminal connection structure of this embodiment, and further includes a water-cooling plate or a housing. A positioning pin is provided on the water-cooling plate or the housing, and the positioning pin is inserted into the positioning hole of the assembly.

[0064] Obviously, the above embodiments are merely examples given for clear illustration, rather than limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to enumerate all the implementation manners here. And the obvious changes or modifications derived therefrom are still within the protection scope of the present invention.

Claims

1. An electrode terminal fixing seat, characterized in that, Comprising: A seat body, on the top of which there are a threaded connection hole and a positioning slot; The threaded connection hole is used for threadedly connecting a threaded fastener; The positioning slot is used for clamping a clamping block on the electrode terminal and making the threaded fastener through hole on the electrode terminal coaxial with the threaded connection hole; At the bottom of the seat body, there is a positioning structure coaxial with the threaded connection hole, and the positioning structure is used for coaxially connecting the positioning part of the assembly component, and the positioning part of the assembly component is coaxial with the threaded fastener through hole on the circuit board.

2. The electrode terminal fixing base according to claim 1, wherein, The positioning structure is a positioning jack or a positioning pin.

3. The electrode terminal fixing base according to claim 2, wherein The positioning structure is a positioning jack; the threaded connection hole communicates with the positioning jack and forms a stepped hole, and the aperture of the threaded connection hole is larger than that of the positioning jack.

4. The electrode terminal fixing base according to claim 1, wherein, On the upper surface of the seat body, there are at least two of the positioning slots.

5. The electrode terminal fixing base according to claim 1, characterized in that, The positioning slots are symmetrically distributed on both sides of the threaded connection hole.

6. The electrode terminal fixing base according to claim 1, characterized in that On the top of the seat body, there is also an anti-warping slot for fixing the tail of the electrode terminal.

7. The electrode terminal fixing base according to claim 6, wherein The anti-warping slot comprises two clamping blocks; the clamping blocks have vertical walls protruding from the top of the seat body, and the upper ends of the vertical walls have bent portions; the two clamping blocks are arranged at intervals to form a slot, and a pressing gap for pressing the tail of the electrode terminal is formed between the bent portions.

8. The electrode terminal fixing base according to claim 7, characterized in that The included angle between the bent portion and the vertical wall is 90°.

9. The electrode terminal fixing base according to claim 1, wherein A metal nut is fixedly connected in the threaded connection hole, and the metal nut is coaxial with the threaded connection hole.

10. The electrode terminal fixing base according to claim 1, characterized in that, The bottom of the seat body is cylindrical, and the top of the seat body is flat.

11. The electrode terminal fixing base according to claim 1, wherein, The seat body is made of plastic.

12. The electrode terminal fixing base according to claim 1, wherein, There are two of the seat bodies arranged side by side.

13. The electrode terminal fixing base according to claim 12, characterized in that, An insulating partition strip for isolating the two electrode terminals is arranged between the two seat bodies.

14. An electrode terminal connection structure, characterized in that, Comprising a circuit board and an electrode terminal, the electrode terminal is fixed on the electrode terminal fixing seat according to any one of claims 1 to 13 to form an assembly, and the circuit board is connected to the assembly through a threaded fastener.

15. The electrode terminal connection structure according to claim 14, characterized in that, The assembly is arranged on the lower surface of the circuit board, and the threaded fastener sequentially passes through the circuit board, the electrode terminal and the electrode terminal fixing seat.

16. A vehicle-mounted charger, characterized in that, Comprising the electrode terminal connection structure according to any one of claims 14 to 15.

17. The on-vehicle charger according to claim 16, wherein It further comprises an assembly component, and a positioning part is arranged on the assembly component, and the positioning part is connected in a mating manner with the positioning structure of the assembly.

18. The on-vehicle charger according to claim 17, wherein, The assembly component is a machine shell or a water cooling plate.

Images